21501796

素因数分解:

$2^2\times {\mathrm{97}}^1\times {\mathrm{151}}^1\times {\mathrm{367}}^1$

素因数の和:619

約数の個数: 24

約数和(自身を含む): 38372096

約数和(自身を除く): 16870300

約数列:

[1, 2, 4, 97, 151, 194, 302, 367, 388, 604, 734, 1468, 14647, 29294, 35599, 55417, 58588, 71198, 110834, 142396, 221668, 5375449, 10750898, 21501796]

約数ペア:

[(1, 21501796), (2, 10750898), (4, 5375449), (97, 221668), (151, 142396), (194, 110834), (302, 71198), (367, 58588), (388, 55417), (604, 35599), (734, 29294), (1468, 14647)]