21215328

素因数分解:

$2^5\times 3^1\times {\mathrm{223}}^1\times {\mathrm{991}}^1$

素因数の和:1227

約数の個数: 48

約数和(自身を含む): 55996416

約数和(自身を除く): 34781088

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96, 223, 446, 669, 892, 991, 1338, 1784, 1982, 2676, 2973, 3568, 3964, 5352, 5946, 7136, 7928, 10704, 11892, 15856, 21408, 23784, 31712, 47568, 95136, 220993, 441986, 662979, 883972, 1325958, 1767944, 2651916, 3535888, 5303832, 7071776, 10607664, 21215328]

約数ペア:

[(1, 21215328), (2, 10607664), (3, 7071776), (4, 5303832), (6, 3535888), (8, 2651916), (12, 1767944), (16, 1325958), (24, 883972), (32, 662979), (48, 441986), (96, 220993), (223, 95136), (446, 47568), (669, 31712), (892, 23784), (991, 21408), (1338, 15856), (1784, 11892), (1982, 10704), (2676, 7928), (2973, 7136), (3568, 5946), (3964, 5352)]