21235844

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{179}}^1\times {\mathrm{223}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 45158400

約数和(自身を除く): 23922556

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 179, 223, 266, 358, 446, 532, 716, 892, 1253, 1561, 2506, 3122, 3401, 4237, 5012, 6244, 6802, 8474, 13604, 16948, 23807, 29659, 39917, 47614, 59318, 79834, 95228, 118636, 159668, 279419, 558838, 758423, 1117676, 1516846, 3033692, 5308961, 10617922, 21235844]

約数ペア:

[(1, 21235844), (2, 10617922), (4, 5308961), (7, 3033692), (14, 1516846), (19, 1117676), (28, 758423), (38, 558838), (76, 279419), (133, 159668), (179, 118636), (223, 95228), (266, 79834), (358, 59318), (446, 47614), (532, 39917), (716, 29659), (892, 23807), (1253, 16948), (1561, 13604), (2506, 8474), (3122, 6802), (3401, 6244), (4237, 5012)]