21259518

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{26641}}^1$

素因数の和:26672

約数の個数: 32

約数和(自身を含む): 51152640

約数和(自身を除く): 29893122

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 266, 399, 798, 26641, 53282, 79923, 159846, 186487, 372974, 506179, 559461, 1012358, 1118922, 1518537, 3037074, 3543253, 7086506, 10629759, 21259518]

約数ペア:

[(1, 21259518), (2, 10629759), (3, 7086506), (6, 3543253), (7, 3037074), (14, 1518537), (19, 1118922), (21, 1012358), (38, 559461), (42, 506179), (57, 372974), (114, 186487), (133, 159846), (266, 79923), (399, 53282), (798, 26641)]