21920580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11071}}^1$

素因数の和:11097

約数の個数: 72

約数和(自身を含む): 72543744

約数和(自身を除く): 50623164

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 11071, 22142, 33213, 44284, 55355, 66426, 99639, 110710, 121781, 132852, 166065, 199278, 221420, 243562, 332130, 365343, 398556, 487124, 498195, 608905, 664260, 730686, 996390, 1096029, 1217810, 1461372, 1826715, 1992780, 2192058, 2435620, 3653430, 4384116, 5480145, 7306860, 10960290, 21920580]

約数ペア:

[(1, 21920580), (2, 10960290), (3, 7306860), (4, 5480145), (5, 4384116), (6, 3653430), (9, 2435620), (10, 2192058), (11, 1992780), (12, 1826715), (15, 1461372), (18, 1217810), (20, 1096029), (22, 996390), (30, 730686), (33, 664260), (36, 608905), (44, 498195), (45, 487124), (55, 398556), (60, 365343), (66, 332130), (90, 243562), (99, 221420), (110, 199278), (132, 166065), (165, 132852), (180, 121781), (198, 110710), (220, 99639), (330, 66426), (396, 55355), (495, 44284), (660, 33213), (990, 22142), (1980, 11071)]