18917556

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1993}}^1$

素因数の和:2120

約数の個数: 48

約数和(自身を含む): 50918784

約数和(自身を除く): 32001228

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 113, 226, 339, 452, 678, 791, 1356, 1582, 1993, 2373, 3164, 3986, 4746, 5979, 7972, 9492, 11958, 13951, 23916, 27902, 41853, 55804, 83706, 167412, 225209, 450418, 675627, 900836, 1351254, 1576463, 2702508, 3152926, 4729389, 6305852, 9458778, 18917556]

約数ペア:

[(1, 18917556), (2, 9458778), (3, 6305852), (4, 4729389), (6, 3152926), (7, 2702508), (12, 1576463), (14, 1351254), (21, 900836), (28, 675627), (42, 450418), (84, 225209), (113, 167412), (226, 83706), (339, 55804), (452, 41853), (678, 27902), (791, 23916), (1356, 13951), (1582, 11958), (1993, 9492), (2373, 7972), (3164, 5979), (3986, 4746)]