21272262

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{281}}^1$

素因数の和:365

約数の個数: 64

約数和(自身を含む): 49379328

約数和(自身を除く): 28107066

約数列:

[1, 2, 3, 6, 11, 22, 31, 33, 37, 62, 66, 74, 93, 111, 186, 222, 281, 341, 407, 562, 682, 814, 843, 1023, 1147, 1221, 1686, 2046, 2294, 2442, 3091, 3441, 6182, 6882, 8711, 9273, 10397, 12617, 17422, 18546, 20794, 25234, 26133, 31191, 37851, 52266, 62382, 75702, 95821, 114367, 191642, 228734, 287463, 322307, 343101, 574926, 644614, 686202, 966921, 1933842, 3545377, 7090754, 10636131, 21272262]

約数ペア:

[(1, 21272262), (2, 10636131), (3, 7090754), (6, 3545377), (11, 1933842), (22, 966921), (31, 686202), (33, 644614), (37, 574926), (62, 343101), (66, 322307), (74, 287463), (93, 228734), (111, 191642), (186, 114367), (222, 95821), (281, 75702), (341, 62382), (407, 52266), (562, 37851), (682, 31191), (814, 26133), (843, 25234), (1023, 20794), (1147, 18546), (1221, 17422), (1686, 12617), (2046, 10397), (2294, 9273), (2442, 8711), (3091, 6882), (3441, 6182)]