28672917

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{827}}^1$

素因数の和:977

約数の個数: 32

約数和(自身を含む): 47480832

約数和(自身を除く): 18807915

約数列:

[1, 3, 7, 13, 21, 39, 91, 127, 273, 381, 827, 889, 1651, 2481, 2667, 4953, 5789, 10751, 11557, 17367, 32253, 34671, 75257, 105029, 225771, 315087, 735203, 1365377, 2205609, 4096131, 9557639, 28672917]

約数ペア:

[(1, 28672917), (3, 9557639), (7, 4096131), (13, 2205609), (21, 1365377), (39, 735203), (91, 315087), (127, 225771), (273, 105029), (381, 75257), (827, 34671), (889, 32253), (1651, 17367), (2481, 11557), (2667, 10751), (4953, 5789)]