321354999

素因数分解:

$3^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{821}}^1$

素因数の和:965

約数の個数: 64

約数和(自身を含む): 578688000

約数和(自身を除く): 257333001

約数列:

[1, 3, 7, 9, 19, 21, 27, 57, 63, 109, 133, 171, 189, 327, 399, 513, 763, 821, 981, 1197, 2071, 2289, 2463, 2943, 3591, 5747, 6213, 6867, 7389, 14497, 15599, 17241, 18639, 20601, 22167, 43491, 46797, 51723, 55917, 89489, 109193, 130473, 140391, 155169, 268467, 327579, 391419, 421173, 626423, 805401, 982737, 1700291, 1879269, 2416203, 2948211, 5100873, 5637807, 11902037, 15302619, 16913421, 35706111, 45907857, 107118333, 321354999]

約数ペア:

[(1, 321354999), (3, 107118333), (7, 45907857), (9, 35706111), (19, 16913421), (21, 15302619), (27, 11902037), (57, 5637807), (63, 5100873), (109, 2948211), (133, 2416203), (171, 1879269), (189, 1700291), (327, 982737), (399, 805401), (513, 626423), (763, 421173), (821, 391419), (981, 327579), (1197, 268467), (2071, 155169), (2289, 140391), (2463, 130473), (2943, 109193), (3591, 89489), (5747, 55917), (6213, 51723), (6867, 46797), (7389, 43491), (14497, 22167), (15599, 20601), (17241, 18639)]