21639550

素因数分解:

$2^1\times 5^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{607}}^1$

素因数の和:673

約数の個数: 48

約数和(自身を含む): 43425792

約数和(自身を除く): 21786242

約数列:

[1, 2, 5, 10, 23, 25, 31, 46, 50, 62, 115, 155, 230, 310, 575, 607, 713, 775, 1150, 1214, 1426, 1550, 3035, 3565, 6070, 7130, 13961, 15175, 17825, 18817, 27922, 30350, 35650, 37634, 69805, 94085, 139610, 188170, 349025, 432791, 470425, 698050, 865582, 940850, 2163955, 4327910, 10819775, 21639550]

約数ペア:

[(1, 21639550), (2, 10819775), (5, 4327910), (10, 2163955), (23, 940850), (25, 865582), (31, 698050), (46, 470425), (50, 432791), (62, 349025), (115, 188170), (155, 139610), (230, 94085), (310, 69805), (575, 37634), (607, 35650), (713, 30350), (775, 27922), (1150, 18817), (1214, 17825), (1426, 15175), (1550, 13961), (3035, 7130), (3565, 6070)]