1621521215

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1\times {\mathrm{389}}^1$

素因数の和:707

約数の個数: 32

約数和(自身を含む): 2019513600

約数和(自身を除く): 397992385

約数列:

[1, 5, 61, 79, 173, 305, 389, 395, 865, 1945, 4819, 10553, 13667, 23729, 24095, 30731, 52765, 67297, 68335, 118645, 153655, 336485, 833687, 1874591, 4105117, 4168435, 5316463, 9372955, 20525585, 26582315, 324304243, 1621521215]

約数ペア:

[(1, 1621521215), (5, 324304243), (61, 26582315), (79, 20525585), (173, 9372955), (305, 5316463), (389, 4168435), (395, 4105117), (865, 1874591), (1945, 833687), (4819, 336485), (10553, 153655), (13667, 118645), (23729, 68335), (24095, 67297), (30731, 52765)]