3920787

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 6709248

約数和(自身を除く): 2788461

約数列:

[1, 3, 9, 13, 23, 31, 39, 47, 69, 93, 117, 141, 207, 279, 299, 403, 423, 611, 713, 897, 1081, 1209, 1457, 1833, 2139, 2691, 3243, 3627, 4371, 5499, 6417, 9269, 9729, 13113, 14053, 18941, 27807, 33511, 42159, 56823, 83421, 100533, 126477, 170469, 301599, 435643, 1306929, 3920787]

約数ペア:

[(1, 3920787), (3, 1306929), (9, 435643), (13, 301599), (23, 170469), (31, 126477), (39, 100533), (47, 83421), (69, 56823), (93, 42159), (117, 33511), (141, 27807), (207, 18941), (279, 14053), (299, 13113), (403, 9729), (423, 9269), (611, 6417), (713, 5499), (897, 4371), (1081, 3627), (1209, 3243), (1457, 2691), (1833, 2139)]