21478284

素因数分解:

$2^2\times 3^5\times {\mathrm{19}}^1\times {\mathrm{1163}}^1$

素因数の和:1201

約数の個数: 72

約数和(自身を含む): 59317440

約数和(自身を除く): 37839156

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 76, 81, 108, 114, 162, 171, 228, 243, 324, 342, 486, 513, 684, 972, 1026, 1163, 1539, 2052, 2326, 3078, 3489, 4617, 4652, 6156, 6978, 9234, 10467, 13956, 18468, 20934, 22097, 31401, 41868, 44194, 62802, 66291, 88388, 94203, 125604, 132582, 188406, 198873, 265164, 282609, 376812, 397746, 565218, 596619, 795492, 1130436, 1193238, 1789857, 2386476, 3579714, 5369571, 7159428, 10739142, 21478284]

約数ペア:

[(1, 21478284), (2, 10739142), (3, 7159428), (4, 5369571), (6, 3579714), (9, 2386476), (12, 1789857), (18, 1193238), (19, 1130436), (27, 795492), (36, 596619), (38, 565218), (54, 397746), (57, 376812), (76, 282609), (81, 265164), (108, 198873), (114, 188406), (162, 132582), (171, 125604), (228, 94203), (243, 88388), (324, 66291), (342, 62802), (486, 44194), (513, 41868), (684, 31401), (972, 22097), (1026, 20934), (1163, 18468), (1539, 13956), (2052, 10467), (2326, 9234), (3078, 6978), (3489, 6156), (4617, 4652)]