21268064

素因数分解:

$2^5\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:315

約数の個数: 48

約数和(自身を含む): 43545600

約数和(自身を除く): 22277536

約数列:

[1, 2, 4, 8, 16, 32, 47, 79, 94, 158, 179, 188, 316, 358, 376, 632, 716, 752, 1264, 1432, 1504, 2528, 2864, 3713, 5728, 7426, 8413, 14141, 14852, 16826, 28282, 29704, 33652, 56564, 59408, 67304, 113128, 118816, 134608, 226256, 269216, 452512, 664627, 1329254, 2658508, 5317016, 10634032, 21268064]

約数ペア:

[(1, 21268064), (2, 10634032), (4, 5317016), (8, 2658508), (16, 1329254), (32, 664627), (47, 452512), (79, 269216), (94, 226256), (158, 134608), (179, 118816), (188, 113128), (316, 67304), (358, 59408), (376, 56564), (632, 33652), (716, 29704), (752, 28282), (1264, 16826), (1432, 14852), (1504, 14141), (2528, 8413), (2864, 7426), (3713, 5728)]