21565214

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{109}}^1$

素因数の和:185

約数の個数: 48

約数和(自身を含む): 39417840

約数和(自身を除く): 17852626

約数列:

[1, 2, 11, 17, 22, 23, 34, 46, 109, 187, 218, 253, 374, 391, 506, 529, 782, 1058, 1199, 1853, 2398, 2507, 3706, 4301, 5014, 5819, 8602, 8993, 11638, 17986, 20383, 27577, 40766, 42619, 55154, 57661, 85238, 98923, 115322, 197846, 468809, 634271, 937618, 980237, 1268542, 1960474, 10782607, 21565214]

約数ペア:

[(1, 21565214), (2, 10782607), (11, 1960474), (17, 1268542), (22, 980237), (23, 937618), (34, 634271), (46, 468809), (109, 197846), (187, 115322), (218, 98923), (253, 85238), (374, 57661), (391, 55154), (506, 42619), (529, 40766), (782, 27577), (1058, 20383), (1199, 17986), (1853, 11638), (2398, 8993), (2507, 8602), (3706, 5819), (4301, 5014)]