21100860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10657}}^1$

素因数の和:10683

約数の個数: 72

約数和(自身を含む): 69831216

約数和(自身を除く): 48730356

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10657, 21314, 31971, 42628, 53285, 63942, 95913, 106570, 117227, 127884, 159855, 191826, 213140, 234454, 319710, 351681, 383652, 468908, 479565, 586135, 639420, 703362, 959130, 1055043, 1172270, 1406724, 1758405, 1918260, 2110086, 2344540, 3516810, 4220172, 5275215, 7033620, 10550430, 21100860]

約数ペア:

[(1, 21100860), (2, 10550430), (3, 7033620), (4, 5275215), (5, 4220172), (6, 3516810), (9, 2344540), (10, 2110086), (11, 1918260), (12, 1758405), (15, 1406724), (18, 1172270), (20, 1055043), (22, 959130), (30, 703362), (33, 639420), (36, 586135), (44, 479565), (45, 468908), (55, 383652), (60, 351681), (66, 319710), (90, 234454), (99, 213140), (110, 191826), (132, 159855), (165, 127884), (180, 117227), (198, 106570), (220, 95913), (330, 63942), (396, 53285), (495, 42628), (660, 31971), (990, 21314), (1980, 10657)]