21243120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{88513}}^1$

素因数の和:88529

約数の個数: 40

約数和(自身を含む): 65854416

約数和(自身を除く): 44611296

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 88513, 177026, 265539, 354052, 442565, 531078, 708104, 885130, 1062156, 1327695, 1416208, 1770260, 2124312, 2655390, 3540520, 4248624, 5310780, 7081040, 10621560, 21243120]

約数ペア:

[(1, 21243120), (2, 10621560), (3, 7081040), (4, 5310780), (5, 4248624), (6, 3540520), (8, 2655390), (10, 2124312), (12, 1770260), (15, 1416208), (16, 1327695), (20, 1062156), (24, 885130), (30, 708104), (40, 531078), (48, 442565), (60, 354052), (80, 265539), (120, 177026), (240, 88513)]