21560340

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{12391}}^1$

素因数の和:12432

約数の個数: 48

約数和(自身を含む): 62455680

約数和(自身を除く): 40895340

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 29, 30, 58, 60, 87, 116, 145, 174, 290, 348, 435, 580, 870, 1740, 12391, 24782, 37173, 49564, 61955, 74346, 123910, 148692, 185865, 247820, 359339, 371730, 718678, 743460, 1078017, 1437356, 1796695, 2156034, 3593390, 4312068, 5390085, 7186780, 10780170, 21560340]

約数ペア:

[(1, 21560340), (2, 10780170), (3, 7186780), (4, 5390085), (5, 4312068), (6, 3593390), (10, 2156034), (12, 1796695), (15, 1437356), (20, 1078017), (29, 743460), (30, 718678), (58, 371730), (60, 359339), (87, 247820), (116, 185865), (145, 148692), (174, 123910), (290, 74346), (348, 61955), (435, 49564), (580, 37173), (870, 24782), (1740, 12391)]