21054258

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{313}}^1$

素因数の和:459

約数の個数: 48

約数和(自身を含む): 47465496

約数和(自身を除く): 26411238

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 101, 111, 202, 222, 303, 313, 333, 606, 626, 666, 909, 939, 1818, 1878, 2817, 3737, 5634, 7474, 11211, 11581, 22422, 23162, 31613, 33633, 34743, 63226, 67266, 69486, 94839, 104229, 189678, 208458, 284517, 569034, 1169681, 2339362, 3509043, 7018086, 10527129, 21054258]

約数ペア:

[(1, 21054258), (2, 10527129), (3, 7018086), (6, 3509043), (9, 2339362), (18, 1169681), (37, 569034), (74, 284517), (101, 208458), (111, 189678), (202, 104229), (222, 94839), (303, 69486), (313, 67266), (333, 63226), (606, 34743), (626, 33633), (666, 31613), (909, 23162), (939, 22422), (1818, 11581), (1878, 11211), (2817, 7474), (3737, 5634)]