21492396

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:391

約数の個数: 72

約数和(自身を含む): 57474144

約数和(自身を除く): 35981748

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 69, 92, 101, 138, 202, 207, 257, 276, 303, 404, 414, 514, 606, 771, 828, 909, 1028, 1212, 1542, 1818, 2313, 2323, 3084, 3636, 4626, 4646, 5911, 6969, 9252, 9292, 11822, 13938, 17733, 20907, 23644, 25957, 27876, 35466, 41814, 51914, 53199, 70932, 77871, 83628, 103828, 106398, 155742, 212796, 233613, 311484, 467226, 597011, 934452, 1194022, 1791033, 2388044, 3582066, 5373099, 7164132, 10746198, 21492396]

約数ペア:

[(1, 21492396), (2, 10746198), (3, 7164132), (4, 5373099), (6, 3582066), (9, 2388044), (12, 1791033), (18, 1194022), (23, 934452), (36, 597011), (46, 467226), (69, 311484), (92, 233613), (101, 212796), (138, 155742), (202, 106398), (207, 103828), (257, 83628), (276, 77871), (303, 70932), (404, 53199), (414, 51914), (514, 41814), (606, 35466), (771, 27876), (828, 25957), (909, 23644), (1028, 20907), (1212, 17733), (1542, 13938), (1818, 11822), (2313, 9292), (2323, 9252), (3084, 6969), (3636, 5911), (4626, 4646)]