20181208341

素因数分解:

$3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{221891}}^1$

素因数の和:222033

約数の個数: 32

約数和(自身を含む): 31696828416

約数和(自身を除く): 11515620075

約数列:

[1, 3, 7, 21, 61, 71, 183, 213, 427, 497, 1281, 1491, 4331, 12993, 30317, 90951, 221891, 665673, 1553237, 4659711, 13535351, 15754261, 40606053, 47262783, 94747457, 110279827, 284242371, 330839481, 961009921, 2883029763, 6727069447, 20181208341]

約数ペア:

[(1, 20181208341), (3, 6727069447), (7, 2883029763), (21, 961009921), (61, 330839481), (71, 284242371), (183, 110279827), (213, 94747457), (427, 47262783), (497, 40606053), (1281, 15754261), (1491, 13535351), (4331, 4659711), (12993, 1553237), (30317, 665673), (90951, 221891)]