21744840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{263}}^1$

素因数の和:343

約数の個数: 128

約数和(自身を含む): 71850240

約数和(自身を除く): 50105400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 53, 60, 65, 78, 104, 106, 120, 130, 156, 159, 195, 212, 260, 263, 265, 312, 318, 390, 424, 520, 526, 530, 636, 689, 780, 789, 795, 1052, 1060, 1272, 1315, 1378, 1560, 1578, 1590, 2067, 2104, 2120, 2630, 2756, 3156, 3180, 3419, 3445, 3945, 4134, 5260, 5512, 6312, 6360, 6838, 6890, 7890, 8268, 10257, 10335, 10520, 13676, 13780, 13939, 15780, 16536, 17095, 20514, 20670, 27352, 27560, 27878, 31560, 34190, 41028, 41340, 41817, 51285, 55756, 68380, 69695, 82056, 82680, 83634, 102570, 111512, 136760, 139390, 167268, 181207, 205140, 209085, 278780, 334536, 362414, 410280, 418170, 543621, 557560, 724828, 836340, 906035, 1087242, 1449656, 1672680, 1812070, 2174484, 2718105, 3624140, 4348968, 5436210, 7248280, 10872420, 21744840]

約数ペア:

[(1, 21744840), (2, 10872420), (3, 7248280), (4, 5436210), (5, 4348968), (6, 3624140), (8, 2718105), (10, 2174484), (12, 1812070), (13, 1672680), (15, 1449656), (20, 1087242), (24, 906035), (26, 836340), (30, 724828), (39, 557560), (40, 543621), (52, 418170), (53, 410280), (60, 362414), (65, 334536), (78, 278780), (104, 209085), (106, 205140), (120, 181207), (130, 167268), (156, 139390), (159, 136760), (195, 111512), (212, 102570), (260, 83634), (263, 82680), (265, 82056), (312, 69695), (318, 68380), (390, 55756), (424, 51285), (520, 41817), (526, 41340), (530, 41028), (636, 34190), (689, 31560), (780, 27878), (789, 27560), (795, 27352), (1052, 20670), (1060, 20514), (1272, 17095), (1315, 16536), (1378, 15780), (1560, 13939), (1578, 13780), (1590, 13676), (2067, 10520), (2104, 10335), (2120, 10257), (2630, 8268), (2756, 7890), (3156, 6890), (3180, 6838), (3419, 6360), (3445, 6312), (3945, 5512), (4134, 5260)]