20879562

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:243

約数の個数: 64

約数和(自身を含む): 47775744

約数和(自身を除く): 26896182

約数列:

[1, 2, 3, 6, 11, 22, 33, 47, 53, 66, 94, 106, 127, 141, 159, 254, 282, 318, 381, 517, 583, 762, 1034, 1166, 1397, 1551, 1749, 2491, 2794, 3102, 3498, 4191, 4982, 5969, 6731, 7473, 8382, 11938, 13462, 14946, 17907, 20193, 27401, 35814, 40386, 54802, 65659, 74041, 82203, 131318, 148082, 164406, 196977, 222123, 316357, 393954, 444246, 632714, 949071, 1898142, 3479927, 6959854, 10439781, 20879562]

約数ペア:

[(1, 20879562), (2, 10439781), (3, 6959854), (6, 3479927), (11, 1898142), (22, 949071), (33, 632714), (47, 444246), (53, 393954), (66, 316357), (94, 222123), (106, 196977), (127, 164406), (141, 148082), (159, 131318), (254, 82203), (282, 74041), (318, 65659), (381, 54802), (517, 40386), (583, 35814), (762, 27401), (1034, 20193), (1166, 17907), (1397, 14946), (1551, 13462), (1749, 11938), (2491, 8382), (2794, 7473), (3102, 6731), (3498, 5969), (4191, 4982)]