19281690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6911}}^1$

素因数の和:6955

約数の個数: 48

約数和(自身を含む): 51757056

約数和(自身を除く): 32475366

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 31, 45, 62, 90, 93, 155, 186, 279, 310, 465, 558, 930, 1395, 2790, 6911, 13822, 20733, 34555, 41466, 62199, 69110, 103665, 124398, 207330, 214241, 310995, 428482, 621990, 642723, 1071205, 1285446, 1928169, 2142410, 3213615, 3856338, 6427230, 9640845, 19281690]

約数ペア:

[(1, 19281690), (2, 9640845), (3, 6427230), (5, 3856338), (6, 3213615), (9, 2142410), (10, 1928169), (15, 1285446), (18, 1071205), (30, 642723), (31, 621990), (45, 428482), (62, 310995), (90, 214241), (93, 207330), (155, 124398), (186, 103665), (279, 69110), (310, 62199), (465, 41466), (558, 34555), (930, 20733), (1395, 13822), (2790, 6911)]