20889572

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:300

約数の個数: 48

約数和(自身を含む): 41705664

約数和(自身を除く): 20816092

約数列:

[1, 2, 4, 11, 22, 43, 44, 61, 86, 122, 172, 181, 244, 362, 473, 671, 724, 946, 1342, 1892, 1991, 2623, 2684, 3982, 5246, 7783, 7964, 10492, 11041, 15566, 22082, 28853, 31132, 44164, 57706, 85613, 115412, 121451, 171226, 242902, 342452, 474763, 485804, 949526, 1899052, 5222393, 10444786, 20889572]

約数ペア:

[(1, 20889572), (2, 10444786), (4, 5222393), (11, 1899052), (22, 949526), (43, 485804), (44, 474763), (61, 342452), (86, 242902), (122, 171226), (172, 121451), (181, 115412), (244, 85613), (362, 57706), (473, 44164), (671, 31132), (724, 28853), (946, 22082), (1342, 15566), (1892, 11041), (1991, 10492), (2623, 7964), (2684, 7783), (3982, 5246)]