21150465

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^3\times {\mathrm{41}}^1$

素因数の和:107

約数の個数: 64

約数和(自身を含む): 42094080

約数和(自身を除く): 20943615

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 41, 51, 85, 105, 119, 123, 205, 255, 287, 289, 357, 595, 615, 697, 861, 867, 1435, 1445, 1785, 2023, 2091, 3485, 4305, 4335, 4879, 4913, 6069, 10115, 10455, 11849, 14637, 14739, 24395, 24565, 30345, 34391, 35547, 59245, 73185, 73695, 82943, 103173, 171955, 177735, 201433, 248829, 414715, 515865, 604299, 1007165, 1244145, 1410031, 3021495, 4230093, 7050155, 21150465]

約数ペア:

[(1, 21150465), (3, 7050155), (5, 4230093), (7, 3021495), (15, 1410031), (17, 1244145), (21, 1007165), (35, 604299), (41, 515865), (51, 414715), (85, 248829), (105, 201433), (119, 177735), (123, 171955), (205, 103173), (255, 82943), (287, 73695), (289, 73185), (357, 59245), (595, 35547), (615, 34391), (697, 30345), (861, 24565), (867, 24395), (1435, 14739), (1445, 14637), (1785, 11849), (2023, 10455), (2091, 10115), (3485, 6069), (4305, 4913), (4335, 4879)]