21742476

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{359}}^1$

素因数の和:483

約数の個数: 72

約数和(自身を含む): 59754240

約数和(自身を除く): 38011764

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 103, 147, 196, 206, 294, 309, 359, 412, 588, 618, 718, 721, 1077, 1236, 1436, 1442, 2154, 2163, 2513, 2884, 4308, 4326, 5026, 5047, 7539, 8652, 10052, 10094, 15078, 15141, 17591, 20188, 30156, 30282, 35182, 36977, 52773, 60564, 70364, 73954, 105546, 110931, 147908, 211092, 221862, 258839, 443724, 517678, 776517, 1035356, 1553034, 1811873, 3106068, 3623746, 5435619, 7247492, 10871238, 21742476]

約数ペア:

[(1, 21742476), (2, 10871238), (3, 7247492), (4, 5435619), (6, 3623746), (7, 3106068), (12, 1811873), (14, 1553034), (21, 1035356), (28, 776517), (42, 517678), (49, 443724), (84, 258839), (98, 221862), (103, 211092), (147, 147908), (196, 110931), (206, 105546), (294, 73954), (309, 70364), (359, 60564), (412, 52773), (588, 36977), (618, 35182), (718, 30282), (721, 30156), (1077, 20188), (1236, 17591), (1436, 15141), (1442, 15078), (2154, 10094), (2163, 10052), (2513, 8652), (2884, 7539), (4308, 5047), (4326, 5026)]