21818340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2579}}^1$

素因数の和:2641

約数の個数: 72

約数和(自身を含む): 67616640

約数和(自身を除く): 45798300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 47, 60, 90, 94, 141, 180, 188, 235, 282, 423, 470, 564, 705, 846, 940, 1410, 1692, 2115, 2579, 2820, 4230, 5158, 7737, 8460, 10316, 12895, 15474, 23211, 25790, 30948, 38685, 46422, 51580, 77370, 92844, 116055, 121213, 154740, 232110, 242426, 363639, 464220, 484852, 606065, 727278, 1090917, 1212130, 1454556, 1818195, 2181834, 2424260, 3636390, 4363668, 5454585, 7272780, 10909170, 21818340]

約数ペア:

[(1, 21818340), (2, 10909170), (3, 7272780), (4, 5454585), (5, 4363668), (6, 3636390), (9, 2424260), (10, 2181834), (12, 1818195), (15, 1454556), (18, 1212130), (20, 1090917), (30, 727278), (36, 606065), (45, 484852), (47, 464220), (60, 363639), (90, 242426), (94, 232110), (141, 154740), (180, 121213), (188, 116055), (235, 92844), (282, 77370), (423, 51580), (470, 46422), (564, 38685), (705, 30948), (846, 25790), (940, 23211), (1410, 15474), (1692, 12895), (2115, 10316), (2579, 8460), (2820, 7737), (4230, 5158)]