21265020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{2411}}^1$

素因数の和:2440

約数の個数: 108

約数和(自身を含む): 75066264

約数和(自身を除く): 53801244

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 420, 441, 490, 588, 630, 735, 882, 980, 1260, 1470, 1764, 2205, 2411, 2940, 4410, 4822, 7233, 8820, 9644, 12055, 14466, 16877, 21699, 24110, 28932, 33754, 36165, 43398, 48220, 50631, 67508, 72330, 84385, 86796, 101262, 108495, 118139, 144660, 151893, 168770, 202524, 216990, 236278, 253155, 303786, 337540, 354417, 433980, 472556, 506310, 590695, 607572, 708834, 759465, 1012620, 1063251, 1181390, 1417668, 1518930, 1772085, 2126502, 2362780, 3037860, 3544170, 4253004, 5316255, 7088340, 10632510, 21265020]

約数ペア:

[(1, 21265020), (2, 10632510), (3, 7088340), (4, 5316255), (5, 4253004), (6, 3544170), (7, 3037860), (9, 2362780), (10, 2126502), (12, 1772085), (14, 1518930), (15, 1417668), (18, 1181390), (20, 1063251), (21, 1012620), (28, 759465), (30, 708834), (35, 607572), (36, 590695), (42, 506310), (45, 472556), (49, 433980), (60, 354417), (63, 337540), (70, 303786), (84, 253155), (90, 236278), (98, 216990), (105, 202524), (126, 168770), (140, 151893), (147, 144660), (180, 118139), (196, 108495), (210, 101262), (245, 86796), (252, 84385), (294, 72330), (315, 67508), (420, 50631), (441, 48220), (490, 43398), (588, 36165), (630, 33754), (735, 28932), (882, 24110), (980, 21699), (1260, 16877), (1470, 14466), (1764, 12055), (2205, 9644), (2411, 8820), (2940, 7233), (4410, 4822)]