20685252

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{277}}^1$

素因数の和:425

約数の個数: 72

約数和(自身を含む): 56792064

約数和(自身を除く): 36106812

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 127, 147, 196, 254, 277, 294, 381, 508, 554, 588, 762, 831, 889, 1108, 1524, 1662, 1778, 1939, 2667, 3324, 3556, 3878, 5334, 5817, 6223, 7756, 10668, 11634, 12446, 13573, 18669, 23268, 24892, 27146, 35179, 37338, 40719, 54292, 70358, 74676, 81438, 105537, 140716, 162876, 211074, 246253, 422148, 492506, 738759, 985012, 1477518, 1723771, 2955036, 3447542, 5171313, 6895084, 10342626, 20685252]

約数ペア:

[(1, 20685252), (2, 10342626), (3, 6895084), (4, 5171313), (6, 3447542), (7, 2955036), (12, 1723771), (14, 1477518), (21, 985012), (28, 738759), (42, 492506), (49, 422148), (84, 246253), (98, 211074), (127, 162876), (147, 140716), (196, 105537), (254, 81438), (277, 74676), (294, 70358), (381, 54292), (508, 40719), (554, 37338), (588, 35179), (762, 27146), (831, 24892), (889, 23268), (1108, 18669), (1524, 13573), (1662, 12446), (1778, 11634), (1939, 10668), (2667, 7756), (3324, 6223), (3556, 5817), (3878, 5334)]