19808172

素因数分解:

$2^2\times 3^3\times {\mathrm{37}}^1\times {\mathrm{4957}}^1$

素因数の和:5007

約数の個数: 48

約数和(自身を含む): 52753120

約数和(自身を除く): 32944948

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 37, 54, 74, 108, 111, 148, 222, 333, 444, 666, 999, 1332, 1998, 3996, 4957, 9914, 14871, 19828, 29742, 44613, 59484, 89226, 133839, 178452, 183409, 267678, 366818, 535356, 550227, 733636, 1100454, 1650681, 2200908, 3301362, 4952043, 6602724, 9904086, 19808172]

約数ペア:

[(1, 19808172), (2, 9904086), (3, 6602724), (4, 4952043), (6, 3301362), (9, 2200908), (12, 1650681), (18, 1100454), (27, 733636), (36, 550227), (37, 535356), (54, 366818), (74, 267678), (108, 183409), (111, 178452), (148, 133839), (222, 89226), (333, 59484), (444, 44613), (666, 29742), (999, 19828), (1332, 14871), (1998, 9914), (3996, 4957)]