18140355

素因数分解:

$3^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{953}}^1$

素因数の和:1017

約数の個数: 40

約数和(自身を含む): 33244992

約数和(自身を除く): 15104637

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 81, 135, 141, 235, 405, 423, 705, 953, 1269, 2115, 2859, 3807, 4765, 6345, 8577, 14295, 19035, 25731, 42885, 44791, 77193, 128655, 134373, 223955, 385965, 403119, 671865, 1209357, 2015595, 3628071, 6046785, 18140355]

約数ペア:

[(1, 18140355), (3, 6046785), (5, 3628071), (9, 2015595), (15, 1209357), (27, 671865), (45, 403119), (47, 385965), (81, 223955), (135, 134373), (141, 128655), (235, 77193), (405, 44791), (423, 42885), (705, 25731), (953, 19035), (1269, 14295), (2115, 8577), (2859, 6345), (3807, 4765)]