20621876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 41368320

約数和(自身を除く): 20746444

約数列:

[1, 2, 4, 11, 22, 37, 44, 53, 74, 106, 148, 212, 239, 407, 478, 583, 814, 956, 1166, 1628, 1961, 2332, 2629, 3922, 5258, 7844, 8843, 10516, 12667, 17686, 21571, 25334, 35372, 43142, 50668, 86284, 97273, 139337, 194546, 278674, 389092, 468679, 557348, 937358, 1874716, 5155469, 10310938, 20621876]

約数ペア:

[(1, 20621876), (2, 10310938), (4, 5155469), (11, 1874716), (22, 937358), (37, 557348), (44, 468679), (53, 389092), (74, 278674), (106, 194546), (148, 139337), (212, 97273), (239, 86284), (407, 50668), (478, 43142), (583, 35372), (814, 25334), (956, 21571), (1166, 17686), (1628, 12667), (1961, 10516), (2332, 8843), (2629, 7844), (3922, 5258)]