19919394

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{2719}}^1$

素因数の和:2775

約数の個数: 48

約数和(自身を含む): 48372480

約数和(自身を除く): 28453086

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 37, 66, 74, 99, 111, 198, 222, 333, 407, 666, 814, 1221, 2442, 2719, 3663, 5438, 7326, 8157, 16314, 24471, 29909, 48942, 59818, 89727, 100603, 179454, 201206, 269181, 301809, 538362, 603618, 905427, 1106633, 1810854, 2213266, 3319899, 6639798, 9959697, 19919394]

約数ペア:

[(1, 19919394), (2, 9959697), (3, 6639798), (6, 3319899), (9, 2213266), (11, 1810854), (18, 1106633), (22, 905427), (33, 603618), (37, 538362), (66, 301809), (74, 269181), (99, 201206), (111, 179454), (198, 100603), (222, 89727), (333, 59818), (407, 48942), (666, 29909), (814, 24471), (1221, 16314), (2442, 8157), (2719, 7326), (3663, 5438)]