21248402

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{1223}}^1$

素因数の和:1322

約数の個数: 32

約数和(自身を含む): 39128832

約数和(自身を除く): 17880430

約数列:

[1, 2, 7, 14, 17, 34, 73, 119, 146, 238, 511, 1022, 1223, 1241, 2446, 2482, 8561, 8687, 17122, 17374, 20791, 41582, 89279, 145537, 178558, 291074, 624953, 1249906, 1517743, 3035486, 10624201, 21248402]

約数ペア:

[(1, 21248402), (2, 10624201), (7, 3035486), (14, 1517743), (17, 1249906), (34, 624953), (73, 291074), (119, 178558), (146, 145537), (238, 89279), (511, 41582), (1022, 20791), (1223, 17374), (1241, 17122), (2446, 8687), (2482, 8561)]