21493399214

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1\times {\mathrm{148663}}^1$

素因数の和:149144

約数の個数: 32

約数和(自身を含む): 38533708800

約数和(自身を除く): 17040309586

約数列:

[1, 2, 7, 14, 23, 46, 161, 322, 449, 898, 3143, 6286, 10327, 20654, 72289, 144578, 148663, 297326, 1040641, 2081282, 3419249, 6838498, 23934743, 47869486, 66749687, 133499374, 467247809, 934495618, 1535242801, 3070485602, 10746699607, 21493399214]

約数ペア:

[(1, 21493399214), (2, 10746699607), (7, 3070485602), (14, 1535242801), (23, 934495618), (46, 467247809), (161, 133499374), (322, 66749687), (449, 47869486), (898, 23934743), (3143, 6838498), (6286, 3419249), (10327, 2081282), (20654, 1040641), (72289, 297326), (144578, 148663)]