21996090

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1987}}^1$

素因数の和:2044

約数の個数: 64

約数和(自身を含む): 60117120

約数和(自身を除く): 38121030

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 41, 45, 54, 82, 90, 123, 135, 205, 246, 270, 369, 410, 615, 738, 1107, 1230, 1845, 1987, 2214, 3690, 3974, 5535, 5961, 9935, 11070, 11922, 17883, 19870, 29805, 35766, 53649, 59610, 81467, 89415, 107298, 162934, 178830, 244401, 268245, 407335, 488802, 536490, 733203, 814670, 1222005, 1466406, 2199609, 2444010, 3666015, 4399218, 7332030, 10998045, 21996090]

約数ペア:

[(1, 21996090), (2, 10998045), (3, 7332030), (5, 4399218), (6, 3666015), (9, 2444010), (10, 2199609), (15, 1466406), (18, 1222005), (27, 814670), (30, 733203), (41, 536490), (45, 488802), (54, 407335), (82, 268245), (90, 244401), (123, 178830), (135, 162934), (205, 107298), (246, 89415), (270, 81467), (369, 59610), (410, 53649), (615, 35766), (738, 29805), (1107, 19870), (1230, 17883), (1845, 11922), (1987, 11070), (2214, 9935), (3690, 5961), (3974, 5535)]