171878721

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{631}}^1$

素因数の和:774

約数の個数: 48

約数和(自身を含む): 285310080

約数和(自身を除く): 113431359

約数列:

[1, 3, 7, 17, 21, 49, 51, 109, 119, 147, 327, 357, 631, 763, 833, 1853, 1893, 2289, 2499, 4417, 5341, 5559, 10727, 12971, 13251, 16023, 30919, 32181, 38913, 68779, 75089, 90797, 92757, 206337, 225267, 272391, 481453, 525623, 1169243, 1444359, 1576869, 3370171, 3507729, 8184701, 10110513, 24554103, 57292907, 171878721]

約数ペア:

[(1, 171878721), (3, 57292907), (7, 24554103), (17, 10110513), (21, 8184701), (49, 3507729), (51, 3370171), (109, 1576869), (119, 1444359), (147, 1169243), (327, 525623), (357, 481453), (631, 272391), (763, 225267), (833, 206337), (1853, 92757), (1893, 90797), (2289, 75089), (2499, 68779), (4417, 38913), (5341, 32181), (5559, 30919), (10727, 16023), (12971, 13251)]