18779964

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{1249}}^1$

素因数の和:1442

約数の個数: 48

約数和(自身を含む): 50400000

約数和(自身を除く): 31620036

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 179, 358, 537, 716, 1074, 1249, 1253, 2148, 2498, 2506, 3747, 3759, 4996, 5012, 7494, 7518, 8743, 14988, 15036, 17486, 26229, 34972, 52458, 104916, 223571, 447142, 670713, 894284, 1341426, 1564997, 2682852, 3129994, 4694991, 6259988, 9389982, 18779964]

約数ペア:

[(1, 18779964), (2, 9389982), (3, 6259988), (4, 4694991), (6, 3129994), (7, 2682852), (12, 1564997), (14, 1341426), (21, 894284), (28, 670713), (42, 447142), (84, 223571), (179, 104916), (358, 52458), (537, 34972), (716, 26229), (1074, 17486), (1249, 15036), (1253, 14988), (2148, 8743), (2498, 7518), (2506, 7494), (3747, 5012), (3759, 4996)]