21531174

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{719}}^1$

素因数の和:785

約数の個数: 64

約数和(自身を含む): 53084160

約数和(自身を除く): 31552986

約数列:

[1, 2, 3, 6, 7, 14, 21, 23, 31, 42, 46, 62, 69, 93, 138, 161, 186, 217, 322, 434, 483, 651, 713, 719, 966, 1302, 1426, 1438, 2139, 2157, 4278, 4314, 4991, 5033, 9982, 10066, 14973, 15099, 16537, 22289, 29946, 30198, 33074, 44578, 49611, 66867, 99222, 115759, 133734, 156023, 231518, 312046, 347277, 468069, 512647, 694554, 936138, 1025294, 1537941, 3075882, 3588529, 7177058, 10765587, 21531174]

約数ペア:

[(1, 21531174), (2, 10765587), (3, 7177058), (6, 3588529), (7, 3075882), (14, 1537941), (21, 1025294), (23, 936138), (31, 694554), (42, 512647), (46, 468069), (62, 347277), (69, 312046), (93, 231518), (138, 156023), (161, 133734), (186, 115759), (217, 99222), (322, 66867), (434, 49611), (483, 44578), (651, 33074), (713, 30198), (719, 29946), (966, 22289), (1302, 16537), (1426, 15099), (1438, 14973), (2139, 10066), (2157, 9982), (4278, 5033), (4314, 4991)]