21527770

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:235

約数の個数: 64

約数和(自身を含む): 45121536

約数和(自身を除く): 23593766

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 67, 110, 115, 127, 134, 230, 253, 254, 335, 506, 635, 670, 737, 1265, 1270, 1397, 1474, 1541, 2530, 2794, 2921, 3082, 3685, 5842, 6985, 7370, 7705, 8509, 13970, 14605, 15410, 16951, 17018, 29210, 32131, 33902, 42545, 64262, 84755, 85090, 93599, 160655, 169510, 187198, 195707, 321310, 391414, 467995, 935990, 978535, 1957070, 2152777, 4305554, 10763885, 21527770]

約数ペア:

[(1, 21527770), (2, 10763885), (5, 4305554), (10, 2152777), (11, 1957070), (22, 978535), (23, 935990), (46, 467995), (55, 391414), (67, 321310), (110, 195707), (115, 187198), (127, 169510), (134, 160655), (230, 93599), (253, 85090), (254, 84755), (335, 64262), (506, 42545), (635, 33902), (670, 32131), (737, 29210), (1265, 17018), (1270, 16951), (1397, 15410), (1474, 14605), (1541, 13970), (2530, 8509), (2794, 7705), (2921, 7370), (3082, 6985), (3685, 5842)]