21853410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:323

約数の個数: 64

約数和(自身を含む): 54552960

約数和(自身を除く): 32699550

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 41, 82, 109, 123, 163, 205, 218, 246, 326, 327, 410, 489, 545, 615, 654, 815, 978, 1090, 1230, 1630, 1635, 2445, 3270, 4469, 4890, 6683, 8938, 13366, 13407, 17767, 20049, 22345, 26814, 33415, 35534, 40098, 44690, 53301, 66830, 67035, 88835, 100245, 106602, 134070, 177670, 200490, 266505, 533010, 728447, 1456894, 2185341, 3642235, 4370682, 7284470, 10926705, 21853410]

約数ペア:

[(1, 21853410), (2, 10926705), (3, 7284470), (5, 4370682), (6, 3642235), (10, 2185341), (15, 1456894), (30, 728447), (41, 533010), (82, 266505), (109, 200490), (123, 177670), (163, 134070), (205, 106602), (218, 100245), (246, 88835), (326, 67035), (327, 66830), (410, 53301), (489, 44690), (545, 40098), (615, 35534), (654, 33415), (815, 26814), (978, 22345), (1090, 20049), (1230, 17767), (1630, 13407), (1635, 13366), (2445, 8938), (3270, 6683), (4469, 4890)]