20403502

素因数分解:

$2^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{331}}^1$

素因数の和:401

約数の個数: 48

約数和(自身を含む): 38832048

約数和(自身を除く): 18428546

約数列:

[1, 2, 7, 14, 17, 34, 37, 49, 74, 98, 119, 238, 259, 331, 518, 629, 662, 833, 1258, 1666, 1813, 2317, 3626, 4403, 4634, 5627, 8806, 11254, 12247, 16219, 24494, 30821, 32438, 39389, 61642, 78778, 85729, 171458, 208199, 275723, 416398, 551446, 600103, 1200206, 1457393, 2914786, 10201751, 20403502]

約数ペア:

[(1, 20403502), (2, 10201751), (7, 2914786), (14, 1457393), (17, 1200206), (34, 600103), (37, 551446), (49, 416398), (74, 275723), (98, 208199), (119, 171458), (238, 85729), (259, 78778), (331, 61642), (518, 39389), (629, 32438), (662, 30821), (833, 24494), (1258, 16219), (1666, 12247), (1813, 11254), (2317, 8806), (3626, 5627), (4403, 4634)]