21382460

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{1171}}^1$

素因数の和:1274

約数の個数: 48

約数和(自身を含む): 49617792

約数和(自身を除く): 28235332

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 83, 110, 166, 220, 332, 415, 830, 913, 1171, 1660, 1826, 2342, 3652, 4565, 4684, 5855, 9130, 11710, 12881, 18260, 23420, 25762, 51524, 64405, 97193, 128810, 194386, 257620, 388772, 485965, 971930, 1069123, 1943860, 2138246, 4276492, 5345615, 10691230, 21382460]

約数ペア:

[(1, 21382460), (2, 10691230), (4, 5345615), (5, 4276492), (10, 2138246), (11, 1943860), (20, 1069123), (22, 971930), (44, 485965), (55, 388772), (83, 257620), (110, 194386), (166, 128810), (220, 97193), (332, 64405), (415, 51524), (830, 25762), (913, 23420), (1171, 18260), (1660, 12881), (1826, 11710), (2342, 9130), (3652, 5855), (4565, 4684)]