18967515987

素因数分解:

$3^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{557}}^1\times {\mathrm{2791}}^1$

素因数の和:3448

約数の個数: 48

約数和(自身を含む): 29837590272

約数和(自身を除く): 10870074285

約数列:

[1, 3, 7, 21, 49, 83, 147, 249, 557, 581, 1671, 1743, 2791, 3899, 4067, 8373, 11697, 12201, 19537, 27293, 46231, 58611, 81879, 136759, 138693, 231653, 323617, 410277, 694959, 970851, 1554587, 1621571, 2265319, 4663761, 4864713, 6795957, 10882109, 11350997, 32646327, 34052991, 76174763, 129030721, 228524289, 387092163, 903215047, 2709645141, 6322505329, 18967515987]

約数ペア:

[(1, 18967515987), (3, 6322505329), (7, 2709645141), (21, 903215047), (49, 387092163), (83, 228524289), (147, 129030721), (249, 76174763), (557, 34052991), (581, 32646327), (1671, 11350997), (1743, 10882109), (2791, 6795957), (3899, 4864713), (4067, 4663761), (8373, 2265319), (11697, 1621571), (12201, 1554587), (19537, 970851), (27293, 694959), (46231, 410277), (58611, 323617), (81879, 231653), (136759, 138693)]