21234213

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2357}}^1$

素因数の和:2394

約数の個数: 48

約数和(自身を含む): 41198976

約数和(自身を除く): 19964763

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 231, 273, 429, 693, 819, 1001, 1287, 2357, 3003, 7071, 9009, 16499, 21213, 25927, 30641, 49497, 77781, 91923, 148491, 181489, 214487, 233343, 275769, 337051, 544467, 643461, 1011153, 1633401, 1930383, 2359357, 3033459, 7078071, 21234213]

約数ペア:

[(1, 21234213), (3, 7078071), (7, 3033459), (9, 2359357), (11, 1930383), (13, 1633401), (21, 1011153), (33, 643461), (39, 544467), (63, 337051), (77, 275769), (91, 233343), (99, 214487), (117, 181489), (143, 148491), (231, 91923), (273, 77781), (429, 49497), (693, 30641), (819, 25927), (1001, 21213), (1287, 16499), (2357, 9009), (3003, 7071)]