21955608

素因数分解:

$2^3\times 3^2\times {\mathrm{61}}^1\times {\mathrm{4999}}^1$

素因数の和:5072

約数の個数: 48

約数和(自身を含む): 60450000

約数和(自身を除く): 38494392

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 61, 72, 122, 183, 244, 366, 488, 549, 732, 1098, 1464, 2196, 4392, 4999, 9998, 14997, 19996, 29994, 39992, 44991, 59988, 89982, 119976, 179964, 304939, 359928, 609878, 914817, 1219756, 1829634, 2439512, 2744451, 3659268, 5488902, 7318536, 10977804, 21955608]

約数ペア:

[(1, 21955608), (2, 10977804), (3, 7318536), (4, 5488902), (6, 3659268), (8, 2744451), (9, 2439512), (12, 1829634), (18, 1219756), (24, 914817), (36, 609878), (61, 359928), (72, 304939), (122, 179964), (183, 119976), (244, 89982), (366, 59988), (488, 44991), (549, 39992), (732, 29994), (1098, 19996), (1464, 14997), (2196, 9998), (4392, 4999)]