18975012

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{397}}^1\times {\mathrm{569}}^1$

素因数の和:980

約数の個数: 48

約数和(自身を含む): 50816640

約数和(自身を除く): 31841628

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 397, 569, 794, 1138, 1191, 1588, 1707, 2276, 2382, 2779, 3414, 3983, 4764, 5558, 6828, 7966, 8337, 11116, 11949, 15932, 16674, 23898, 33348, 47796, 225893, 451786, 677679, 903572, 1355358, 1581251, 2710716, 3162502, 4743753, 6325004, 9487506, 18975012]

約数ペア:

[(1, 18975012), (2, 9487506), (3, 6325004), (4, 4743753), (6, 3162502), (7, 2710716), (12, 1581251), (14, 1355358), (21, 903572), (28, 677679), (42, 451786), (84, 225893), (397, 47796), (569, 33348), (794, 23898), (1138, 16674), (1191, 15932), (1588, 11949), (1707, 11116), (2276, 8337), (2382, 7966), (2779, 6828), (3414, 5558), (3983, 4764)]