21125764

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{463}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 43497216

約数和(自身を除く): 22371452

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 61, 68, 122, 187, 244, 374, 463, 671, 748, 926, 1037, 1342, 1852, 2074, 2684, 4148, 5093, 7871, 10186, 11407, 15742, 20372, 22814, 28243, 31484, 45628, 56486, 86581, 112972, 173162, 310673, 346324, 480131, 621346, 960262, 1242692, 1920524, 5281441, 10562882, 21125764]

約数ペア:

[(1, 21125764), (2, 10562882), (4, 5281441), (11, 1920524), (17, 1242692), (22, 960262), (34, 621346), (44, 480131), (61, 346324), (68, 310673), (122, 173162), (187, 112972), (244, 86581), (374, 56486), (463, 45628), (671, 31484), (748, 28243), (926, 22814), (1037, 20372), (1342, 15742), (1852, 11407), (2074, 10186), (2684, 7871), (4148, 5093)]