21185060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4793}}^1$

素因数の和:4832

約数の個数: 48

約数和(自身を含む): 50739696

約数和(自身を除く): 29554636

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 26, 34, 52, 65, 68, 85, 130, 170, 221, 260, 340, 442, 884, 1105, 2210, 4420, 4793, 9586, 19172, 23965, 47930, 62309, 81481, 95860, 124618, 162962, 249236, 311545, 325924, 407405, 623090, 814810, 1059253, 1246180, 1629620, 2118506, 4237012, 5296265, 10592530, 21185060]

約数ペア:

[(1, 21185060), (2, 10592530), (4, 5296265), (5, 4237012), (10, 2118506), (13, 1629620), (17, 1246180), (20, 1059253), (26, 814810), (34, 623090), (52, 407405), (65, 325924), (68, 311545), (85, 249236), (130, 162962), (170, 124618), (221, 95860), (260, 81481), (340, 62309), (442, 47930), (884, 23965), (1105, 19172), (2210, 9586), (4420, 4793)]