12142221

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{563}}^1$

素因数の和:665

約数の個数: 32

約数和(自身を含む): 20213760

約数和(自身を除く): 8071539

約数列:

[1, 3, 7, 13, 21, 39, 79, 91, 237, 273, 553, 563, 1027, 1659, 1689, 3081, 3941, 7189, 7319, 11823, 21567, 21957, 44477, 51233, 133431, 153699, 311339, 578201, 934017, 1734603, 4047407, 12142221]

約数ペア:

[(1, 12142221), (3, 4047407), (7, 1734603), (13, 934017), (21, 578201), (39, 311339), (79, 153699), (91, 133431), (237, 51233), (273, 44477), (553, 21957), (563, 21567), (1027, 11823), (1659, 7319), (1689, 7189), (3081, 3941)]