18772468

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{887}}^1$

素因数の和:952

約数の個数: 48

約数和(自身を含む): 39682944

約数和(自身を除く): 20910476

約数列:

[1, 2, 4, 11, 13, 22, 26, 37, 44, 52, 74, 143, 148, 286, 407, 481, 572, 814, 887, 962, 1628, 1774, 1924, 3548, 5291, 9757, 10582, 11531, 19514, 21164, 23062, 32819, 39028, 46124, 65638, 126841, 131276, 253682, 361009, 426647, 507364, 722018, 853294, 1444036, 1706588, 4693117, 9386234, 18772468]

約数ペア:

[(1, 18772468), (2, 9386234), (4, 4693117), (11, 1706588), (13, 1444036), (22, 853294), (26, 722018), (37, 507364), (44, 426647), (52, 361009), (74, 253682), (143, 131276), (148, 126841), (286, 65638), (407, 46124), (481, 39028), (572, 32819), (814, 23062), (887, 21164), (962, 19514), (1628, 11531), (1774, 10582), (1924, 9757), (3548, 5291)]