21229390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{569}}^1$

素因数の和:637

約数の個数: 64

約数和(自身を含む): 48263040

約数和(自身を除く): 27033650

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 41, 65, 70, 82, 91, 130, 182, 205, 287, 410, 455, 533, 569, 574, 910, 1066, 1138, 1435, 2665, 2845, 2870, 3731, 3983, 5330, 5690, 7397, 7462, 7966, 14794, 18655, 19915, 23329, 36985, 37310, 39830, 46658, 51779, 73970, 103558, 116645, 163303, 233290, 258895, 303277, 326606, 517790, 606554, 816515, 1516385, 1633030, 2122939, 3032770, 4245878, 10614695, 21229390]

約数ペア:

[(1, 21229390), (2, 10614695), (5, 4245878), (7, 3032770), (10, 2122939), (13, 1633030), (14, 1516385), (26, 816515), (35, 606554), (41, 517790), (65, 326606), (70, 303277), (82, 258895), (91, 233290), (130, 163303), (182, 116645), (205, 103558), (287, 73970), (410, 51779), (455, 46658), (533, 39830), (569, 37310), (574, 36985), (910, 23329), (1066, 19915), (1138, 18655), (1435, 14794), (2665, 7966), (2845, 7462), (2870, 7397), (3731, 5690), (3983, 5330)]