21413805

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8867}}^1$

素因数の和:8905

約数の個数: 32

約数和(自身を含む): 40863744

約数和(自身を除く): 19449939

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 8867, 26601, 44335, 62069, 133005, 186207, 203941, 310345, 611823, 931035, 1019705, 1427587, 3059115, 4282761, 7137935, 21413805]

約数ペア:

[(1, 21413805), (3, 7137935), (5, 4282761), (7, 3059115), (15, 1427587), (21, 1019705), (23, 931035), (35, 611823), (69, 310345), (105, 203941), (115, 186207), (161, 133005), (345, 62069), (483, 44335), (805, 26601), (2415, 8867)]