21951810

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{661}}^1$

素因数の和:721

約数の個数: 80

約数和(自身を含む): 60557112

約数和(自身を除く): 38605302

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 41, 45, 54, 81, 82, 90, 123, 135, 162, 205, 246, 270, 369, 405, 410, 615, 661, 738, 810, 1107, 1230, 1322, 1845, 1983, 2214, 3305, 3321, 3690, 3966, 5535, 5949, 6610, 6642, 9915, 11070, 11898, 16605, 17847, 19830, 27101, 29745, 33210, 35694, 53541, 54202, 59490, 81303, 89235, 107082, 135505, 162606, 178470, 243909, 267705, 271010, 406515, 487818, 535410, 731727, 813030, 1219545, 1463454, 2195181, 2439090, 3658635, 4390362, 7317270, 10975905, 21951810]

約数ペア:

[(1, 21951810), (2, 10975905), (3, 7317270), (5, 4390362), (6, 3658635), (9, 2439090), (10, 2195181), (15, 1463454), (18, 1219545), (27, 813030), (30, 731727), (41, 535410), (45, 487818), (54, 406515), (81, 271010), (82, 267705), (90, 243909), (123, 178470), (135, 162606), (162, 135505), (205, 107082), (246, 89235), (270, 81303), (369, 59490), (405, 54202), (410, 53541), (615, 35694), (661, 33210), (738, 29745), (810, 27101), (1107, 19830), (1230, 17847), (1322, 16605), (1845, 11898), (1983, 11070), (2214, 9915), (3305, 6642), (3321, 6610), (3690, 5949), (3966, 5535)]