21259180

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{2017}}^1$

素因数の和:2074

約数の個数: 48

約数和(自身を含む): 48819456

約数和(自身を除く): 27560276

約数列:

[1, 2, 4, 5, 10, 17, 20, 31, 34, 62, 68, 85, 124, 155, 170, 310, 340, 527, 620, 1054, 2017, 2108, 2635, 4034, 5270, 8068, 10085, 10540, 20170, 34289, 40340, 62527, 68578, 125054, 137156, 171445, 250108, 312635, 342890, 625270, 685780, 1062959, 1250540, 2125918, 4251836, 5314795, 10629590, 21259180]

約数ペア:

[(1, 21259180), (2, 10629590), (4, 5314795), (5, 4251836), (10, 2125918), (17, 1250540), (20, 1062959), (31, 685780), (34, 625270), (62, 342890), (68, 312635), (85, 250108), (124, 171445), (155, 137156), (170, 125054), (310, 68578), (340, 62527), (527, 40340), (620, 34289), (1054, 20170), (2017, 10540), (2108, 10085), (2635, 8068), (4034, 5270)]