21073182

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 47663616

約数和(自身を除く): 26590434

約数列:

[1, 2, 3, 6, 13, 26, 39, 43, 61, 78, 86, 103, 122, 129, 183, 206, 258, 309, 366, 559, 618, 793, 1118, 1339, 1586, 1677, 2379, 2623, 2678, 3354, 4017, 4429, 4758, 5246, 6283, 7869, 8034, 8858, 12566, 13287, 15738, 18849, 26574, 34099, 37698, 57577, 68198, 81679, 102297, 115154, 163358, 172731, 204594, 245037, 270169, 345462, 490074, 540338, 810507, 1621014, 3512197, 7024394, 10536591, 21073182]

約数ペア:

[(1, 21073182), (2, 10536591), (3, 7024394), (6, 3512197), (13, 1621014), (26, 810507), (39, 540338), (43, 490074), (61, 345462), (78, 270169), (86, 245037), (103, 204594), (122, 172731), (129, 163358), (183, 115154), (206, 102297), (258, 81679), (309, 68198), (366, 57577), (559, 37698), (618, 34099), (793, 26574), (1118, 18849), (1339, 15738), (1586, 13287), (1677, 12566), (2379, 8858), (2623, 8034), (2678, 7869), (3354, 6283), (4017, 5246), (4429, 4758)]