31881906

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{401}}^1\times {\mathrm{631}}^1$

素因数の和:1047

約数の個数: 48

約数和(自身を含む): 79267968

約数和(自身を除く): 47386062

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 401, 631, 802, 1203, 1262, 1893, 2406, 2807, 3609, 3786, 4417, 5614, 5679, 7218, 8421, 8834, 11358, 13251, 16842, 25263, 26502, 39753, 50526, 79506, 253031, 506062, 759093, 1518186, 1771217, 2277279, 3542434, 4554558, 5313651, 10627302, 15940953, 31881906]

約数ペア:

[(1, 31881906), (2, 15940953), (3, 10627302), (6, 5313651), (7, 4554558), (9, 3542434), (14, 2277279), (18, 1771217), (21, 1518186), (42, 759093), (63, 506062), (126, 253031), (401, 79506), (631, 50526), (802, 39753), (1203, 26502), (1262, 25263), (1893, 16842), (2406, 13251), (2807, 11358), (3609, 8834), (3786, 8421), (4417, 7218), (5614, 5679)]