21544920

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{19949}}^1$

素因数の和:19969

約数の個数: 64

約数和(自身を含む): 71820000

約数和(自身を除く): 50275080

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 30, 36, 40, 45, 54, 60, 72, 90, 108, 120, 135, 180, 216, 270, 360, 540, 1080, 19949, 39898, 59847, 79796, 99745, 119694, 159592, 179541, 199490, 239388, 299235, 359082, 398980, 478776, 538623, 598470, 718164, 797960, 897705, 1077246, 1196940, 1436328, 1795410, 2154492, 2393880, 2693115, 3590820, 4308984, 5386230, 7181640, 10772460, 21544920]

約数ペア:

[(1, 21544920), (2, 10772460), (3, 7181640), (4, 5386230), (5, 4308984), (6, 3590820), (8, 2693115), (9, 2393880), (10, 2154492), (12, 1795410), (15, 1436328), (18, 1196940), (20, 1077246), (24, 897705), (27, 797960), (30, 718164), (36, 598470), (40, 538623), (45, 478776), (54, 398980), (60, 359082), (72, 299235), (90, 239388), (108, 199490), (120, 179541), (135, 159592), (180, 119694), (216, 99745), (270, 79796), (360, 59847), (540, 39898), (1080, 19949)]