219874473

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{821}}^1$

素因数の和:959

約数の個数: 64

約数和(自身を含む): 405081600

約数和(自身を除く): 185207127

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 91, 109, 117, 189, 273, 327, 351, 763, 819, 821, 981, 1417, 2289, 2457, 2463, 2943, 4251, 5747, 6867, 7389, 9919, 10673, 12753, 17241, 20601, 22167, 29757, 32019, 38259, 51723, 74711, 89271, 89489, 96057, 155169, 224133, 267813, 268467, 288171, 626423, 672399, 805401, 1163357, 1879269, 2017197, 2416203, 3490071, 5637807, 8143499, 10470213, 16913421, 24430497, 31410639, 73291491, 219874473]

約数ペア:

[(1, 219874473), (3, 73291491), (7, 31410639), (9, 24430497), (13, 16913421), (21, 10470213), (27, 8143499), (39, 5637807), (63, 3490071), (91, 2416203), (109, 2017197), (117, 1879269), (189, 1163357), (273, 805401), (327, 672399), (351, 626423), (763, 288171), (819, 268467), (821, 267813), (981, 224133), (1417, 155169), (2289, 96057), (2457, 89489), (2463, 89271), (2943, 74711), (4251, 51723), (5747, 38259), (6867, 32019), (7389, 29757), (9919, 22167), (10673, 20601), (12753, 17241)]