20454406

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{457}}^1$

素因数の和:628

約数の個数: 32

約数和(自身を含む): 36933120

約数和(自身を除く): 16478714

約数列:

[1, 2, 7, 14, 23, 46, 139, 161, 278, 322, 457, 914, 973, 1946, 3197, 3199, 6394, 6398, 10511, 21022, 22379, 44758, 63523, 73577, 127046, 147154, 444661, 889322, 1461029, 2922058, 10227203, 20454406]

約数ペア:

[(1, 20454406), (2, 10227203), (7, 2922058), (14, 1461029), (23, 889322), (46, 444661), (139, 147154), (161, 127046), (278, 73577), (322, 63523), (457, 44758), (914, 22379), (973, 21022), (1946, 10511), (3197, 6398), (3199, 6394)]