20500794

素因数分解:

$2^1\times 3^2\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:355

約数の個数: 48

約数和(自身を含む): 45826560

約数和(自身を除く): 25325766

約数列:

[1, 2, 3, 6, 9, 18, 67, 89, 134, 178, 191, 201, 267, 382, 402, 534, 573, 603, 801, 1146, 1206, 1602, 1719, 3438, 5963, 11926, 12797, 16999, 17889, 25594, 33998, 35778, 38391, 50997, 53667, 76782, 101994, 107334, 115173, 152991, 230346, 305982, 1138933, 2277866, 3416799, 6833598, 10250397, 20500794]

約数ペア:

[(1, 20500794), (2, 10250397), (3, 6833598), (6, 3416799), (9, 2277866), (18, 1138933), (67, 305982), (89, 230346), (134, 152991), (178, 115173), (191, 107334), (201, 101994), (267, 76782), (382, 53667), (402, 50997), (534, 38391), (573, 35778), (603, 33998), (801, 25594), (1146, 17889), (1206, 16999), (1602, 12797), (1719, 11926), (3438, 5963)]