21275763

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 31545600

約数和(自身を除く): 10269837

約数列:

[1, 3, 19, 29, 57, 61, 87, 183, 211, 551, 633, 1159, 1653, 1769, 3477, 4009, 5307, 6119, 12027, 12871, 18357, 33611, 38613, 100833, 116261, 244549, 348783, 373259, 733647, 1119777, 7091921, 21275763]

約数ペア:

[(1, 21275763), (3, 7091921), (19, 1119777), (29, 733647), (57, 373259), (61, 348783), (87, 244549), (183, 116261), (211, 100833), (551, 38613), (633, 33611), (1159, 18357), (1653, 12871), (1769, 12027), (3477, 6119), (4009, 5307)]