21375486

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1213}}^1$

素因数の和:1321

約数の個数: 48

約数和(自身を含む): 51133680

約数和(自身を除く): 29758194

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 89, 99, 178, 198, 267, 534, 801, 979, 1213, 1602, 1958, 2426, 2937, 3639, 5874, 7278, 8811, 10917, 13343, 17622, 21834, 26686, 40029, 80058, 107957, 120087, 215914, 240174, 323871, 647742, 971613, 1187527, 1943226, 2375054, 3562581, 7125162, 10687743, 21375486]

約数ペア:

[(1, 21375486), (2, 10687743), (3, 7125162), (6, 3562581), (9, 2375054), (11, 1943226), (18, 1187527), (22, 971613), (33, 647742), (66, 323871), (89, 240174), (99, 215914), (178, 120087), (198, 107957), (267, 80058), (534, 40029), (801, 26686), (979, 21834), (1213, 17622), (1602, 13343), (1958, 10917), (2426, 8811), (2937, 7278), (3639, 5874)]