21369840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89041}}^1$

素因数の和:89057

約数の個数: 40

約数和(自身を含む): 66247248

約数和(自身を除く): 44877408

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89041, 178082, 267123, 356164, 445205, 534246, 712328, 890410, 1068492, 1335615, 1424656, 1780820, 2136984, 2671230, 3561640, 4273968, 5342460, 7123280, 10684920, 21369840]

約数ペア:

[(1, 21369840), (2, 10684920), (3, 7123280), (4, 5342460), (5, 4273968), (6, 3561640), (8, 2671230), (10, 2136984), (12, 1780820), (15, 1424656), (16, 1335615), (20, 1068492), (24, 890410), (30, 712328), (40, 534246), (48, 445205), (60, 356164), (80, 267123), (120, 178082), (240, 89041)]