28031913

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{3803}}^1$

素因数の和:3835

約数の個数: 40

約数和(自身を含む): 51551808

約数和(自身を除く): 23519895

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 81, 91, 117, 189, 273, 351, 567, 819, 1053, 2457, 3803, 7371, 11409, 26621, 34227, 49439, 79863, 102681, 148317, 239589, 308043, 346073, 444951, 718767, 1038219, 1334853, 2156301, 3114657, 4004559, 9343971, 28031913]

約数ペア:

[(1, 28031913), (3, 9343971), (7, 4004559), (9, 3114657), (13, 2156301), (21, 1334853), (27, 1038219), (39, 718767), (63, 444951), (81, 346073), (91, 308043), (117, 239589), (189, 148317), (273, 102681), (351, 79863), (567, 49439), (819, 34227), (1053, 26621), (2457, 11409), (3803, 7371)]