18905445

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1901}}^1$

素因数の和:1942

約数の個数: 48

約数和(自身を含む): 37385712

約数和(自身を除く): 18480267

約数列:

[1, 3, 5, 9, 13, 15, 17, 39, 45, 51, 65, 85, 117, 153, 195, 221, 255, 585, 663, 765, 1105, 1901, 1989, 3315, 5703, 9505, 9945, 17109, 24713, 28515, 32317, 74139, 85545, 96951, 123565, 161585, 222417, 290853, 370695, 420121, 484755, 1112085, 1260363, 1454265, 2100605, 3781089, 6301815, 18905445]

約数ペア:

[(1, 18905445), (3, 6301815), (5, 3781089), (9, 2100605), (13, 1454265), (15, 1260363), (17, 1112085), (39, 484755), (45, 420121), (51, 370695), (65, 290853), (85, 222417), (117, 161585), (153, 123565), (195, 96951), (221, 85545), (255, 74139), (585, 32317), (663, 28515), (765, 24713), (1105, 17109), (1901, 9945), (1989, 9505), (3315, 5703)]