21575061820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{173}}^1\times {\mathrm{11699}}^1$

素因数の和:11935

約数の個数: 96

約数和(自身を含む): 50276116800

約数和(自身を除く): 28701054980

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 173, 205, 260, 346, 410, 533, 692, 820, 865, 1066, 1730, 2132, 2249, 2665, 3460, 4498, 5330, 7093, 8996, 10660, 11245, 11699, 14186, 22490, 23398, 28372, 35465, 44980, 46796, 58495, 70930, 92209, 116990, 141860, 152087, 184418, 233980, 304174, 368836, 461045, 479659, 608348, 760435, 922090, 959318, 1520870, 1844180, 1918636, 2023927, 2398295, 3041740, 4047854, 4796590, 6235567, 8095708, 9593180, 10119635, 12471134, 20239270, 24942268, 26311051, 31177835, 40478540, 52622102, 62355670, 82981007, 105244204, 124711340, 131555255, 165962014, 263110510, 331924028, 414905035, 526221020, 829810070, 1078753091, 1659620140, 2157506182, 4315012364, 5393765455, 10787530910, 21575061820]

約数ペア:

[(1, 21575061820), (2, 10787530910), (4, 5393765455), (5, 4315012364), (10, 2157506182), (13, 1659620140), (20, 1078753091), (26, 829810070), (41, 526221020), (52, 414905035), (65, 331924028), (82, 263110510), (130, 165962014), (164, 131555255), (173, 124711340), (205, 105244204), (260, 82981007), (346, 62355670), (410, 52622102), (533, 40478540), (692, 31177835), (820, 26311051), (865, 24942268), (1066, 20239270), (1730, 12471134), (2132, 10119635), (2249, 9593180), (2665, 8095708), (3460, 6235567), (4498, 4796590), (5330, 4047854), (7093, 3041740), (8996, 2398295), (10660, 2023927), (11245, 1918636), (11699, 1844180), (14186, 1520870), (22490, 959318), (23398, 922090), (28372, 760435), (35465, 608348), (44980, 479659), (46796, 461045), (58495, 368836), (70930, 304174), (92209, 233980), (116990, 184418), (141860, 152087)]