21697012

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{4261}}^1$

素因数の和:4351

約数の個数: 24

約数和(自身を含む): 40574240

約数和(自身を除く): 18877228

約数列:

[1, 2, 4, 19, 38, 67, 76, 134, 268, 1273, 2546, 4261, 5092, 8522, 17044, 80959, 161918, 285487, 323836, 570974, 1141948, 5424253, 10848506, 21697012]

約数ペア:

[(1, 21697012), (2, 10848506), (4, 5424253), (19, 1141948), (38, 570974), (67, 323836), (76, 285487), (134, 161918), (268, 80959), (1273, 17044), (2546, 8522), (4261, 5092)]