21432720

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{89303}}^1$

素因数の和:89319

約数の個数: 40

約数和(自身を含む): 66442176

約数和(自身を除く): 45009456

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 89303, 178606, 267909, 357212, 446515, 535818, 714424, 893030, 1071636, 1339545, 1428848, 1786060, 2143272, 2679090, 3572120, 4286544, 5358180, 7144240, 10716360, 21432720]

約数ペア:

[(1, 21432720), (2, 10716360), (3, 7144240), (4, 5358180), (5, 4286544), (6, 3572120), (8, 2679090), (10, 2143272), (12, 1786060), (15, 1428848), (16, 1339545), (20, 1071636), (24, 893030), (30, 714424), (40, 535818), (48, 446515), (60, 357212), (80, 267909), (120, 178606), (240, 89303)]