21277036

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{821}}^1$

素因数の和:886

約数の個数: 48

約数和(自身を含む): 44190720

約数和(自身を除く): 22913684

約数列:

[1, 2, 4, 11, 19, 22, 31, 38, 44, 62, 76, 124, 209, 341, 418, 589, 682, 821, 836, 1178, 1364, 1642, 2356, 3284, 6479, 9031, 12958, 15599, 18062, 25451, 25916, 31198, 36124, 50902, 62396, 101804, 171589, 279961, 343178, 483569, 559922, 686356, 967138, 1119844, 1934276, 5319259, 10638518, 21277036]

約数ペア:

[(1, 21277036), (2, 10638518), (4, 5319259), (11, 1934276), (19, 1119844), (22, 967138), (31, 686356), (38, 559922), (44, 483569), (62, 343178), (76, 279961), (124, 171589), (209, 101804), (341, 62396), (418, 50902), (589, 36124), (682, 31198), (821, 25916), (836, 25451), (1178, 18062), (1364, 15599), (1642, 12958), (2356, 9031), (3284, 6479)]