21740910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1\times {\mathrm{173}}^1$

素因数の和:313

約数の個数: 64

約数和(自身を含む): 54120960

約数和(自身を除く): 32380050

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 59, 71, 118, 142, 173, 177, 213, 295, 346, 354, 355, 426, 519, 590, 710, 865, 885, 1038, 1065, 1730, 1770, 2130, 2595, 4189, 5190, 8378, 10207, 12283, 12567, 20414, 20945, 24566, 25134, 30621, 36849, 41890, 51035, 61242, 61415, 62835, 73698, 102070, 122830, 125670, 153105, 184245, 306210, 368490, 724697, 1449394, 2174091, 3623485, 4348182, 7246970, 10870455, 21740910]

約数ペア:

[(1, 21740910), (2, 10870455), (3, 7246970), (5, 4348182), (6, 3623485), (10, 2174091), (15, 1449394), (30, 724697), (59, 368490), (71, 306210), (118, 184245), (142, 153105), (173, 125670), (177, 122830), (213, 102070), (295, 73698), (346, 62835), (354, 61415), (355, 61242), (426, 51035), (519, 41890), (590, 36849), (710, 30621), (865, 25134), (885, 24566), (1038, 20945), (1065, 20414), (1730, 12567), (1770, 12283), (2130, 10207), (2595, 8378), (4189, 5190)]