21135352

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{149}}^2$

素因数の和:328

約数の個数: 48

約数和(自身を含む): 48278160

約数和(自身を除く): 27142808

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 119, 136, 149, 238, 298, 476, 596, 952, 1043, 1192, 2086, 2533, 4172, 5066, 8344, 10132, 17731, 20264, 22201, 35462, 44402, 70924, 88804, 141848, 155407, 177608, 310814, 377417, 621628, 754834, 1243256, 1509668, 2641919, 3019336, 5283838, 10567676, 21135352]

約数ペア:

[(1, 21135352), (2, 10567676), (4, 5283838), (7, 3019336), (8, 2641919), (14, 1509668), (17, 1243256), (28, 754834), (34, 621628), (56, 377417), (68, 310814), (119, 177608), (136, 155407), (149, 141848), (238, 88804), (298, 70924), (476, 44402), (596, 35462), (952, 22201), (1043, 20264), (1192, 17731), (2086, 10132), (2533, 8344), (4172, 5066)]