20910944

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{211}}^1$

素因数の和:403

約数の個数: 48

約数和(自身を含む): 43807680

約数和(自身を除く): 22896736

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 163, 211, 304, 326, 422, 608, 652, 844, 1304, 1688, 2608, 3097, 3376, 4009, 5216, 6194, 6752, 8018, 12388, 16036, 24776, 32072, 34393, 49552, 64144, 68786, 99104, 128288, 137572, 275144, 550288, 653467, 1100576, 1306934, 2613868, 5227736, 10455472, 20910944]

約数ペア:

[(1, 20910944), (2, 10455472), (4, 5227736), (8, 2613868), (16, 1306934), (19, 1100576), (32, 653467), (38, 550288), (76, 275144), (152, 137572), (163, 128288), (211, 99104), (304, 68786), (326, 64144), (422, 49552), (608, 34393), (652, 32072), (844, 24776), (1304, 16036), (1688, 12388), (2608, 8018), (3097, 6752), (3376, 6194), (4009, 5216)]