20884578

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{101}}^1\times {\mathrm{241}}^1$

素因数の和:371

約数の個数: 64

約数和(自身を含む): 49762944

約数和(自身を除く): 28878366

約数列:

[1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 101, 143, 202, 241, 286, 303, 429, 482, 606, 723, 858, 1111, 1313, 1446, 2222, 2626, 2651, 3133, 3333, 3939, 5302, 6266, 6666, 7878, 7953, 9399, 14443, 15906, 18798, 24341, 28886, 34463, 43329, 48682, 68926, 73023, 86658, 103389, 146046, 206778, 267751, 316433, 535502, 632866, 803253, 949299, 1606506, 1898598, 3480763, 6961526, 10442289, 20884578]

約数ペア:

[(1, 20884578), (2, 10442289), (3, 6961526), (6, 3480763), (11, 1898598), (13, 1606506), (22, 949299), (26, 803253), (33, 632866), (39, 535502), (66, 316433), (78, 267751), (101, 206778), (143, 146046), (202, 103389), (241, 86658), (286, 73023), (303, 68926), (429, 48682), (482, 43329), (606, 34463), (723, 28886), (858, 24341), (1111, 18798), (1313, 15906), (1446, 14443), (2222, 9399), (2626, 7953), (2651, 7878), (3133, 6666), (3333, 6266), (3939, 5302)]