21801417

素因数分解:

$3^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 35112000

約数和(自身を除く): 13310583

約数列:

[1, 3, 11, 19, 29, 33, 57, 87, 109, 121, 209, 319, 327, 363, 551, 627, 957, 1199, 1653, 2071, 2299, 3161, 3509, 3597, 6061, 6213, 6897, 9483, 10527, 13189, 18183, 22781, 34771, 39567, 60059, 66671, 68343, 104313, 180177, 200013, 250591, 382481, 660649, 751773, 1147443, 1981947, 7267139, 21801417]

約数ペア:

[(1, 21801417), (3, 7267139), (11, 1981947), (19, 1147443), (29, 751773), (33, 660649), (57, 382481), (87, 250591), (109, 200013), (121, 180177), (209, 104313), (319, 68343), (327, 66671), (363, 60059), (551, 39567), (627, 34771), (957, 22781), (1199, 18183), (1653, 13189), (2071, 10527), (2299, 9483), (3161, 6897), (3509, 6213), (3597, 6061)]