20021784

素因数分解:

$2^3\times 3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{1583}}^1$

素因数の和:1640

約数の個数: 64

約数和(自身を含む): 54743040

約数和(自身を除く): 34721256

約数列:

[1, 2, 3, 4, 6, 8, 12, 17, 24, 31, 34, 51, 62, 68, 93, 102, 124, 136, 186, 204, 248, 372, 408, 527, 744, 1054, 1581, 1583, 2108, 3162, 3166, 4216, 4749, 6324, 6332, 9498, 12648, 12664, 18996, 26911, 37992, 49073, 53822, 80733, 98146, 107644, 147219, 161466, 196292, 215288, 294438, 322932, 392584, 588876, 645864, 834241, 1177752, 1668482, 2502723, 3336964, 5005446, 6673928, 10010892, 20021784]

約数ペア:

[(1, 20021784), (2, 10010892), (3, 6673928), (4, 5005446), (6, 3336964), (8, 2502723), (12, 1668482), (17, 1177752), (24, 834241), (31, 645864), (34, 588876), (51, 392584), (62, 322932), (68, 294438), (93, 215288), (102, 196292), (124, 161466), (136, 147219), (186, 107644), (204, 98146), (248, 80733), (372, 53822), (408, 49073), (527, 37992), (744, 26911), (1054, 18996), (1581, 12664), (1583, 12648), (2108, 9498), (3162, 6332), (3166, 6324), (4216, 4749)]