16563885

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{491}}^1$

素因数の和:685

約数の個数: 32

約数和(自身を含む): 28764288

約数和(自身を除く): 12200403

約数列:

[1, 3, 5, 13, 15, 39, 65, 173, 195, 491, 519, 865, 1473, 2249, 2455, 2595, 6383, 6747, 7365, 11245, 19149, 31915, 33735, 84943, 95745, 254829, 424715, 1104259, 1274145, 3312777, 5521295, 16563885]

約数ペア:

[(1, 16563885), (3, 5521295), (5, 3312777), (13, 1274145), (15, 1104259), (39, 424715), (65, 254829), (173, 95745), (195, 84943), (491, 33735), (519, 31915), (865, 19149), (1473, 11245), (2249, 7365), (2455, 6747), (2595, 6383)]