21904860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{12589}}^1$

素因数の和:12630

約数の個数: 48

約数和(自身を含む): 63453600

約数和(自身を除く): 41548740

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, 12589, 25178, 37767, 50356, 62945, 75534, 125890, 151068, 188835, 251780, 365081, 377670, 730162, 755340, 1095243, 1460324, 1825405, 2190486, 3650810, 4380972, 5476215, 7301620, 10952430, 21904860]

約数ペア:

[(1, 21904860), (2, 10952430), (3, 7301620), (4, 5476215), (5, 4380972), (6, 3650810), (10, 2190486), (12, 1825405), (15, 1460324), (20, 1095243), (29, 755340), (30, 730162), (58, 377670), (60, 365081), (87, 251780), (116, 188835), (145, 151068), (174, 125890), (290, 75534), (348, 62945), (435, 50356), (580, 37767), (870, 25178), (1740, 12589)]