21030764

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{809}}^1$

素因数の和:977

約数の個数: 24

約数和(自身を含む): 37784880

約数和(自身を除く): 16754116

約数列:

[1, 2, 4, 67, 97, 134, 194, 268, 388, 809, 1618, 3236, 6499, 12998, 25996, 54203, 78473, 108406, 156946, 216812, 313892, 5257691, 10515382, 21030764]

約数ペア:

[(1, 21030764), (2, 10515382), (4, 5257691), (67, 313892), (97, 216812), (134, 156946), (194, 108406), (268, 78473), (388, 54203), (809, 25996), (1618, 12998), (3236, 6499)]