21858892

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{2377}}^1$

素因数の和:2422

約数の個数: 36

約数和(自身を含む): 44278360

約数和(自身を除く): 22419468

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 209, 242, 418, 484, 836, 2299, 2377, 4598, 4754, 9196, 9508, 26147, 45163, 52294, 90326, 104588, 180652, 287617, 496793, 575234, 993586, 1150468, 1987172, 5464723, 10929446, 21858892]

約数ペア:

[(1, 21858892), (2, 10929446), (4, 5464723), (11, 1987172), (19, 1150468), (22, 993586), (38, 575234), (44, 496793), (76, 287617), (121, 180652), (209, 104588), (242, 90326), (418, 52294), (484, 45163), (836, 26147), (2299, 9508), (2377, 9196), (4598, 4754)]