221514909

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{173}}^1\times {\mathrm{241}}^1$

素因数の和:458

約数の個数: 64

約数和(自身を含む): 388067328

約数和(自身を除く): 166552419

約数列:

[1, 3, 7, 11, 21, 23, 33, 69, 77, 161, 173, 231, 241, 253, 483, 519, 723, 759, 1211, 1687, 1771, 1903, 2651, 3633, 3979, 5061, 5313, 5543, 5709, 7953, 11937, 13321, 16629, 18557, 27853, 38801, 39963, 41693, 43769, 55671, 60973, 83559, 116403, 125079, 131307, 182919, 291851, 306383, 426811, 458623, 875553, 919149, 958939, 1280433, 1375869, 2876817, 3210361, 6712573, 9631083, 10548329, 20137719, 31644987, 73838303, 221514909]

約数ペア:

[(1, 221514909), (3, 73838303), (7, 31644987), (11, 20137719), (21, 10548329), (23, 9631083), (33, 6712573), (69, 3210361), (77, 2876817), (161, 1375869), (173, 1280433), (231, 958939), (241, 919149), (253, 875553), (483, 458623), (519, 426811), (723, 306383), (759, 291851), (1211, 182919), (1687, 131307), (1771, 125079), (1903, 116403), (2651, 83559), (3633, 60973), (3979, 55671), (5061, 43769), (5313, 41693), (5543, 39963), (5709, 38801), (7953, 27853), (11937, 18557), (13321, 16629)]