21603218

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{547}}^1$

素因数の和:607

約数の個数: 48

約数和(自身を含む): 41981184

約数和(自身を除く): 20377966

約数列:

[1, 2, 7, 13, 14, 26, 31, 49, 62, 91, 98, 182, 217, 403, 434, 547, 637, 806, 1094, 1274, 1519, 2821, 3038, 3829, 5642, 7111, 7658, 14222, 16957, 19747, 26803, 33914, 39494, 49777, 53606, 99554, 118699, 220441, 237398, 348439, 440882, 696878, 830893, 1543087, 1661786, 3086174, 10801609, 21603218]

約数ペア:

[(1, 21603218), (2, 10801609), (7, 3086174), (13, 1661786), (14, 1543087), (26, 830893), (31, 696878), (49, 440882), (62, 348439), (91, 237398), (98, 220441), (182, 118699), (217, 99554), (403, 53606), (434, 49777), (547, 39494), (637, 33914), (806, 26803), (1094, 19747), (1274, 16957), (1519, 14222), (2821, 7658), (3038, 7111), (3829, 5642)]