21146620

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{5059}}^1$

素因数の和:5098

約数の個数: 48

約数和(自身を含む): 51004800

約数和(自身を除く): 29858180

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 5059, 10118, 20236, 25295, 50590, 55649, 96121, 101180, 111298, 192242, 222596, 278245, 384484, 480605, 556490, 961210, 1057331, 1112980, 1922420, 2114662, 4229324, 5286655, 10573310, 21146620]

約数ペア:

[(1, 21146620), (2, 10573310), (4, 5286655), (5, 4229324), (10, 2114662), (11, 1922420), (19, 1112980), (20, 1057331), (22, 961210), (38, 556490), (44, 480605), (55, 384484), (76, 278245), (95, 222596), (110, 192242), (190, 111298), (209, 101180), (220, 96121), (380, 55649), (418, 50590), (836, 25295), (1045, 20236), (2090, 10118), (4180, 5059)]