18468975

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{277}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 35299328

約数和(自身を除く): 16830353

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 127, 175, 277, 381, 525, 635, 831, 889, 1385, 1905, 1939, 2667, 3175, 4155, 4445, 5817, 6925, 9525, 9695, 13335, 20775, 22225, 29085, 35179, 48475, 66675, 105537, 145425, 175895, 246253, 527685, 738759, 879475, 1231265, 2638425, 3693795, 6156325, 18468975]

約数ペア:

[(1, 18468975), (3, 6156325), (5, 3693795), (7, 2638425), (15, 1231265), (21, 879475), (25, 738759), (35, 527685), (75, 246253), (105, 175895), (127, 145425), (175, 105537), (277, 66675), (381, 48475), (525, 35179), (635, 29085), (831, 22225), (889, 20775), (1385, 13335), (1905, 9695), (1939, 9525), (2667, 6925), (3175, 5817), (4155, 4445)]