21485688

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{7523}}^1$

素因数の和:7556

約数の個数: 64

約数和(自身を含む): 65007360

約数和(自身を除く): 43521672

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 84, 102, 119, 136, 168, 204, 238, 357, 408, 476, 714, 952, 1428, 2856, 7523, 15046, 22569, 30092, 45138, 52661, 60184, 90276, 105322, 127891, 157983, 180552, 210644, 255782, 315966, 383673, 421288, 511564, 631932, 767346, 895237, 1023128, 1263864, 1534692, 1790474, 2685711, 3069384, 3580948, 5371422, 7161896, 10742844, 21485688]

約数ペア:

[(1, 21485688), (2, 10742844), (3, 7161896), (4, 5371422), (6, 3580948), (7, 3069384), (8, 2685711), (12, 1790474), (14, 1534692), (17, 1263864), (21, 1023128), (24, 895237), (28, 767346), (34, 631932), (42, 511564), (51, 421288), (56, 383673), (68, 315966), (84, 255782), (102, 210644), (119, 180552), (136, 157983), (168, 127891), (204, 105322), (238, 90276), (357, 60184), (408, 52661), (476, 45138), (714, 30092), (952, 22569), (1428, 15046), (2856, 7523)]