215425518

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{239}}^1\times {\mathrm{1951}}^1$

素因数の和:2213

約数の個数: 64

約数和(自身を含む): 539688960

約数和(自身を除く): 324263442

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 231, 239, 462, 478, 717, 1434, 1673, 1951, 2629, 3346, 3902, 5019, 5258, 5853, 7887, 10038, 11706, 13657, 15774, 18403, 21461, 27314, 36806, 40971, 42922, 55209, 64383, 81942, 110418, 128766, 150227, 300454, 450681, 466289, 901362, 932578, 1398867, 2797734, 3264023, 5129179, 6528046, 9792069, 10258358, 15387537, 19584138, 30775074, 35904253, 71808506, 107712759, 215425518]

約数ペア:

[(1, 215425518), (2, 107712759), (3, 71808506), (6, 35904253), (7, 30775074), (11, 19584138), (14, 15387537), (21, 10258358), (22, 9792069), (33, 6528046), (42, 5129179), (66, 3264023), (77, 2797734), (154, 1398867), (231, 932578), (239, 901362), (462, 466289), (478, 450681), (717, 300454), (1434, 150227), (1673, 128766), (1951, 110418), (2629, 81942), (3346, 64383), (3902, 55209), (5019, 42922), (5258, 40971), (5853, 36806), (7887, 27314), (10038, 21461), (11706, 18403), (13657, 15774)]