28701309

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{653}}^1$

素因数の和:706

約数の個数: 48

約数和(自身を含む): 50101632

約数和(自身を除く): 21400323

約数列:

[1, 3, 7, 13, 21, 23, 39, 49, 69, 91, 147, 161, 273, 299, 483, 637, 653, 897, 1127, 1911, 1959, 2093, 3381, 4571, 6279, 8489, 13713, 14651, 15019, 25467, 31997, 43953, 45057, 59423, 95991, 105133, 178269, 195247, 315399, 415961, 585741, 735931, 1247883, 1366729, 2207793, 4100187, 9567103, 28701309]

約数ペア:

[(1, 28701309), (3, 9567103), (7, 4100187), (13, 2207793), (21, 1366729), (23, 1247883), (39, 735931), (49, 585741), (69, 415961), (91, 315399), (147, 195247), (161, 178269), (273, 105133), (299, 95991), (483, 59423), (637, 45057), (653, 43953), (897, 31997), (1127, 25467), (1911, 15019), (1959, 14651), (2093, 13713), (3381, 8489), (4571, 6279)]