18558972

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{631}}^1$

素因数の和:703

約数の個数: 72

約数和(自身を含む): 50610560

約数和(自身を除く): 32051588

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 43, 57, 76, 86, 114, 129, 171, 172, 228, 258, 342, 387, 516, 631, 684, 774, 817, 1262, 1548, 1634, 1893, 2451, 2524, 3268, 3786, 4902, 5679, 7353, 7572, 9804, 11358, 11989, 14706, 22716, 23978, 27133, 29412, 35967, 47956, 54266, 71934, 81399, 107901, 108532, 143868, 162798, 215802, 244197, 325596, 431604, 488394, 515527, 976788, 1031054, 1546581, 2062108, 3093162, 4639743, 6186324, 9279486, 18558972]

約数ペア:

[(1, 18558972), (2, 9279486), (3, 6186324), (4, 4639743), (6, 3093162), (9, 2062108), (12, 1546581), (18, 1031054), (19, 976788), (36, 515527), (38, 488394), (43, 431604), (57, 325596), (76, 244197), (86, 215802), (114, 162798), (129, 143868), (171, 108532), (172, 107901), (228, 81399), (258, 71934), (342, 54266), (387, 47956), (516, 35967), (631, 29412), (684, 27133), (774, 23978), (817, 22716), (1262, 14706), (1548, 11989), (1634, 11358), (1893, 9804), (2451, 7572), (2524, 7353), (3268, 5679), (3786, 4902)]