397921797

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2239}}^1$

素因数の和:2303

約数の個数: 72

約数和(自身を含む): 743608320

約数和(自身を除く): 345686523

約数列:

[1, 3, 7, 9, 13, 21, 31, 39, 49, 63, 91, 93, 117, 147, 217, 273, 279, 403, 441, 637, 651, 819, 1209, 1519, 1911, 1953, 2239, 2821, 3627, 4557, 5733, 6717, 8463, 13671, 15673, 19747, 20151, 25389, 29107, 47019, 59241, 69409, 87321, 109711, 141057, 177723, 203749, 208227, 261963, 329133, 485863, 611247, 624681, 902317, 987399, 1426243, 1457589, 1833741, 2706951, 3401041, 4278729, 4372767, 6316219, 8120853, 10203123, 12836187, 18948657, 30609369, 44213533, 56845971, 132640599, 397921797]

約数ペア:

[(1, 397921797), (3, 132640599), (7, 56845971), (9, 44213533), (13, 30609369), (21, 18948657), (31, 12836187), (39, 10203123), (49, 8120853), (63, 6316219), (91, 4372767), (93, 4278729), (117, 3401041), (147, 2706951), (217, 1833741), (273, 1457589), (279, 1426243), (403, 987399), (441, 902317), (637, 624681), (651, 611247), (819, 485863), (1209, 329133), (1519, 261963), (1911, 208227), (1953, 203749), (2239, 177723), (2821, 141057), (3627, 109711), (4557, 87321), (5733, 69409), (6717, 59241), (8463, 47019), (13671, 29107), (15673, 25389), (19747, 20151)]