21094020

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{449}}^1$

素因数の和:499

約数の個数: 120

約数和(自身を含む): 68607000

約数和(自身を除く): 47512980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 29, 30, 36, 45, 54, 58, 60, 81, 87, 90, 108, 116, 135, 145, 162, 174, 180, 261, 270, 290, 324, 348, 405, 435, 449, 522, 540, 580, 783, 810, 870, 898, 1044, 1305, 1347, 1566, 1620, 1740, 1796, 2245, 2349, 2610, 2694, 3132, 3915, 4041, 4490, 4698, 5220, 5388, 6735, 7830, 8082, 8980, 9396, 11745, 12123, 13021, 13470, 15660, 16164, 20205, 23490, 24246, 26042, 26940, 36369, 39063, 40410, 46980, 48492, 52084, 60615, 65105, 72738, 78126, 80820, 117189, 121230, 130210, 145476, 156252, 181845, 195315, 234378, 242460, 260420, 351567, 363690, 390630, 468756, 585945, 703134, 727380, 781260, 1054701, 1171890, 1406268, 1757835, 2109402, 2343780, 3515670, 4218804, 5273505, 7031340, 10547010, 21094020]

約数ペア:

[(1, 21094020), (2, 10547010), (3, 7031340), (4, 5273505), (5, 4218804), (6, 3515670), (9, 2343780), (10, 2109402), (12, 1757835), (15, 1406268), (18, 1171890), (20, 1054701), (27, 781260), (29, 727380), (30, 703134), (36, 585945), (45, 468756), (54, 390630), (58, 363690), (60, 351567), (81, 260420), (87, 242460), (90, 234378), (108, 195315), (116, 181845), (135, 156252), (145, 145476), (162, 130210), (174, 121230), (180, 117189), (261, 80820), (270, 78126), (290, 72738), (324, 65105), (348, 60615), (405, 52084), (435, 48492), (449, 46980), (522, 40410), (540, 39063), (580, 36369), (783, 26940), (810, 26042), (870, 24246), (898, 23490), (1044, 20205), (1305, 16164), (1347, 15660), (1566, 13470), (1620, 13021), (1740, 12123), (1796, 11745), (2245, 9396), (2349, 8980), (2610, 8082), (2694, 7830), (3132, 6735), (3915, 5388), (4041, 5220), (4490, 4698)]