21238736

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{463}}^1$

素因数の和:579

約数の個数: 40

約数和(自身を含む): 42806784

約数和(自身を除く): 21568048

約数列:

[1, 2, 4, 8, 16, 47, 61, 94, 122, 188, 244, 376, 463, 488, 752, 926, 976, 1852, 2867, 3704, 5734, 7408, 11468, 21761, 22936, 28243, 43522, 45872, 56486, 87044, 112972, 174088, 225944, 348176, 451888, 1327421, 2654842, 5309684, 10619368, 21238736]

約数ペア:

[(1, 21238736), (2, 10619368), (4, 5309684), (8, 2654842), (16, 1327421), (47, 451888), (61, 348176), (94, 225944), (122, 174088), (188, 112972), (244, 87044), (376, 56486), (463, 45872), (488, 43522), (752, 28243), (926, 22936), (976, 21761), (1852, 11468), (2867, 7408), (3704, 5734)]