18907518

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^3\times {\mathrm{37}}^1$

素因数の和:118

約数の個数: 64

約数和(自身を含む): 46402560

約数和(自身を除く): 27495042

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 37, 42, 46, 69, 74, 111, 138, 161, 222, 259, 322, 483, 518, 529, 777, 851, 966, 1058, 1554, 1587, 1702, 2553, 3174, 3703, 5106, 5957, 7406, 11109, 11914, 12167, 17871, 19573, 22218, 24334, 35742, 36501, 39146, 58719, 73002, 85169, 117438, 137011, 170338, 255507, 274022, 411033, 450179, 511014, 822066, 900358, 1350537, 2701074, 3151253, 6302506, 9453759, 18907518]

約数ペア:

[(1, 18907518), (2, 9453759), (3, 6302506), (6, 3151253), (7, 2701074), (14, 1350537), (21, 900358), (23, 822066), (37, 511014), (42, 450179), (46, 411033), (69, 274022), (74, 255507), (111, 170338), (138, 137011), (161, 117438), (222, 85169), (259, 73002), (322, 58719), (483, 39146), (518, 36501), (529, 35742), (777, 24334), (851, 22218), (966, 19573), (1058, 17871), (1554, 12167), (1587, 11914), (1702, 11109), (2553, 7406), (3174, 5957), (3703, 5106)]