18870838

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{1163}}^1$

素因数の和:1252

約数の個数: 32

約数和(自身を含む): 34640640

約数和(自身を除く): 15769802

約数列:

[1, 2, 7, 14, 19, 38, 61, 122, 133, 266, 427, 854, 1159, 1163, 2318, 2326, 8113, 8141, 16226, 16282, 22097, 44194, 70943, 141886, 154679, 309358, 496601, 993202, 1347917, 2695834, 9435419, 18870838]

約数ペア:

[(1, 18870838), (2, 9435419), (7, 2695834), (14, 1347917), (19, 993202), (38, 496601), (61, 309358), (122, 154679), (133, 141886), (266, 70943), (427, 44194), (854, 22097), (1159, 16282), (1163, 16226), (2318, 8141), (2326, 8113)]