20797430418

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{787}}^1\times {\mathrm{39679}}^1$

素因数の和:40511

約数の個数: 48

約数和(自身を含む): 46338938880

約数和(自身を除く): 25541508462

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 222, 333, 666, 787, 1574, 2361, 4722, 7083, 14166, 29119, 39679, 58238, 79358, 87357, 119037, 174714, 238074, 262071, 357111, 524142, 714222, 1468123, 2936246, 4404369, 8808738, 13213107, 26426214, 31227373, 62454746, 93682119, 187364238, 281046357, 562092714, 1155412801, 2310825602, 3466238403, 6932476806, 10398715209, 20797430418]

約数ペア:

[(1, 20797430418), (2, 10398715209), (3, 6932476806), (6, 3466238403), (9, 2310825602), (18, 1155412801), (37, 562092714), (74, 281046357), (111, 187364238), (222, 93682119), (333, 62454746), (666, 31227373), (787, 26426214), (1574, 13213107), (2361, 8808738), (4722, 4404369), (7083, 2936246), (14166, 1468123), (29119, 714222), (39679, 524142), (58238, 357111), (79358, 262071), (87357, 238074), (119037, 174714)]