21856086

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{89}}^1\times {\mathrm{1949}}^1$

素因数の和:2053

約数の個数: 48

約数和(自身を含む): 54756000

約数和(自身を除く): 32899914

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 89, 126, 178, 267, 534, 623, 801, 1246, 1602, 1869, 1949, 3738, 3898, 5607, 5847, 11214, 11694, 13643, 17541, 27286, 35082, 40929, 81858, 122787, 173461, 245574, 346922, 520383, 1040766, 1214227, 1561149, 2428454, 3122298, 3642681, 7285362, 10928043, 21856086]

約数ペア:

[(1, 21856086), (2, 10928043), (3, 7285362), (6, 3642681), (7, 3122298), (9, 2428454), (14, 1561149), (18, 1214227), (21, 1040766), (42, 520383), (63, 346922), (89, 245574), (126, 173461), (178, 122787), (267, 81858), (534, 40929), (623, 35082), (801, 27286), (1246, 17541), (1602, 13643), (1869, 11694), (1949, 11214), (3738, 5847), (3898, 5607)]