21333580

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1811}}^1$

素因数の和:1870

約数の個数: 48

約数和(自身を含む): 48706560

約数和(自身を除く): 27372980

約数列:

[1, 2, 4, 5, 10, 19, 20, 31, 38, 62, 76, 95, 124, 155, 190, 310, 380, 589, 620, 1178, 1811, 2356, 2945, 3622, 5890, 7244, 9055, 11780, 18110, 34409, 36220, 56141, 68818, 112282, 137636, 172045, 224564, 280705, 344090, 561410, 688180, 1066679, 1122820, 2133358, 4266716, 5333395, 10666790, 21333580]

約数ペア:

[(1, 21333580), (2, 10666790), (4, 5333395), (5, 4266716), (10, 2133358), (19, 1122820), (20, 1066679), (31, 688180), (38, 561410), (62, 344090), (76, 280705), (95, 224564), (124, 172045), (155, 137636), (190, 112282), (310, 68818), (380, 56141), (589, 36220), (620, 34409), (1178, 18110), (1811, 11780), (2356, 9055), (2945, 7244), (3622, 5890)]