21593060

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1549}}^1$

素因数の和:1616

約数の個数: 48

約数和(自身を含む): 49215600

約数和(自身を除く): 27622540

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1394, 1549, 2788, 3098, 3485, 6196, 6970, 7745, 13940, 15490, 26333, 30980, 52666, 63509, 105332, 127018, 131665, 254036, 263330, 317545, 526660, 635090, 1079653, 1270180, 2159306, 4318612, 5398265, 10796530, 21593060]

約数ペア:

[(1, 21593060), (2, 10796530), (4, 5398265), (5, 4318612), (10, 2159306), (17, 1270180), (20, 1079653), (34, 635090), (41, 526660), (68, 317545), (82, 263330), (85, 254036), (164, 131665), (170, 127018), (205, 105332), (340, 63509), (410, 52666), (697, 30980), (820, 26333), (1394, 15490), (1549, 13940), (2788, 7745), (3098, 6970), (3485, 6196)]