19887483

素因数分解:

$3^1\times 7^4\times {\mathrm{11}}^1\times {\mathrm{251}}^1$

素因数の和:293

約数の個数: 40

約数和(自身を含む): 33880896

約数和(自身を除く): 13993413

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 251, 343, 539, 753, 1029, 1617, 1757, 2401, 2761, 3773, 5271, 7203, 8283, 11319, 12299, 19327, 26411, 36897, 57981, 79233, 86093, 135289, 258279, 405867, 602651, 947023, 1807953, 2841069, 6629161, 19887483]

約数ペア:

[(1, 19887483), (3, 6629161), (7, 2841069), (11, 1807953), (21, 947023), (33, 602651), (49, 405867), (77, 258279), (147, 135289), (231, 86093), (251, 79233), (343, 57981), (539, 36897), (753, 26411), (1029, 19327), (1617, 12299), (1757, 11319), (2401, 8283), (2761, 7203), (3773, 5271)]