211860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1$

素因数の和:133

約数の個数: 72

約数和(自身を含む): 707616

約数和(自身を除く): 495756

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, 107, 110, 132, 165, 180, 198, 214, 220, 321, 330, 396, 428, 495, 535, 642, 660, 963, 990, 1070, 1177, 1284, 1605, 1926, 1980, 2140, 2354, 3210, 3531, 3852, 4708, 4815, 5885, 6420, 7062, 9630, 10593, 11770, 14124, 17655, 19260, 21186, 23540, 35310, 42372, 52965, 70620, 105930, 211860]

約数ペア:

[(1, 211860), (2, 105930), (3, 70620), (4, 52965), (5, 42372), (6, 35310), (9, 23540), (10, 21186), (11, 19260), (12, 17655), (15, 14124), (18, 11770), (20, 10593), (22, 9630), (30, 7062), (33, 6420), (36, 5885), (44, 4815), (45, 4708), (55, 3852), (60, 3531), (66, 3210), (90, 2354), (99, 2140), (107, 1980), (110, 1926), (132, 1605), (165, 1284), (180, 1177), (198, 1070), (214, 990), (220, 963), (321, 660), (330, 642), (396, 535), (428, 495)]