19285990

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{2767}}^1$

素因数の和:2832

約数の個数: 32

約数和(自身を含む): 37666944

約数和(自身を除く): 18380954

約数列:

[1, 2, 5, 10, 17, 34, 41, 82, 85, 170, 205, 410, 697, 1394, 2767, 3485, 5534, 6970, 13835, 27670, 47039, 94078, 113447, 226894, 235195, 470390, 567235, 1134470, 1928599, 3857198, 9642995, 19285990]

約数ペア:

[(1, 19285990), (2, 9642995), (5, 3857198), (10, 1928599), (17, 1134470), (34, 567235), (41, 470390), (82, 235195), (85, 226894), (170, 113447), (205, 94078), (410, 47039), (697, 27670), (1394, 13835), (2767, 6970), (3485, 5534)]