21389163720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{189017}}^1$

素因数の和:189095

約数の個数: 128

約数和(自身を含む): 68590851840

約数和(自身を除く): 47201688120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 41, 46, 60, 69, 82, 92, 115, 120, 123, 138, 164, 184, 205, 230, 246, 276, 328, 345, 410, 460, 492, 552, 615, 690, 820, 920, 943, 984, 1230, 1380, 1640, 1886, 2460, 2760, 2829, 3772, 4715, 4920, 5658, 7544, 9430, 11316, 14145, 18860, 22632, 28290, 37720, 56580, 113160, 189017, 378034, 567051, 756068, 945085, 1134102, 1512136, 1890170, 2268204, 2835255, 3780340, 4347391, 4536408, 5670510, 7560680, 7749697, 8694782, 11341020, 13042173, 15499394, 17389564, 21736955, 22682040, 23249091, 26084346, 30998788, 34779128, 38748485, 43473910, 46498182, 52168692, 61997576, 65210865, 77496970, 86947820, 92996364, 104337384, 116245455, 130421730, 154993940, 173895640, 178243031, 185992728, 232490910, 260843460, 309987880, 356486062, 464981820, 521686920, 534729093, 712972124, 891215155, 929963640, 1069458186, 1425944248, 1782430310, 2138916372, 2673645465, 3564860620, 4277832744, 5347290930, 7129721240, 10694581860, 21389163720]

約数ペア:

[(1, 21389163720), (2, 10694581860), (3, 7129721240), (4, 5347290930), (5, 4277832744), (6, 3564860620), (8, 2673645465), (10, 2138916372), (12, 1782430310), (15, 1425944248), (20, 1069458186), (23, 929963640), (24, 891215155), (30, 712972124), (40, 534729093), (41, 521686920), (46, 464981820), (60, 356486062), (69, 309987880), (82, 260843460), (92, 232490910), (115, 185992728), (120, 178243031), (123, 173895640), (138, 154993940), (164, 130421730), (184, 116245455), (205, 104337384), (230, 92996364), (246, 86947820), (276, 77496970), (328, 65210865), (345, 61997576), (410, 52168692), (460, 46498182), (492, 43473910), (552, 38748485), (615, 34779128), (690, 30998788), (820, 26084346), (920, 23249091), (943, 22682040), (984, 21736955), (1230, 17389564), (1380, 15499394), (1640, 13042173), (1886, 11341020), (2460, 8694782), (2760, 7749697), (2829, 7560680), (3772, 5670510), (4715, 4536408), (4920, 4347391), (5658, 3780340), (7544, 2835255), (9430, 2268204), (11316, 1890170), (14145, 1512136), (18860, 1134102), (22632, 945085), (28290, 756068), (37720, 567051), (56580, 378034), (113160, 189017)]