19421528

素因数分解:

$2^3\times 7^1\times {\mathrm{47}}^2\times {\mathrm{157}}^1$

素因数の和:264

約数の個数: 48

約数和(自身を含む): 42792720

約数和(自身を除く): 23371192

約数列:

[1, 2, 4, 7, 8, 14, 28, 47, 56, 94, 157, 188, 314, 329, 376, 628, 658, 1099, 1256, 1316, 2198, 2209, 2632, 4396, 4418, 7379, 8792, 8836, 14758, 15463, 17672, 29516, 30926, 51653, 59032, 61852, 103306, 123704, 206612, 346813, 413224, 693626, 1387252, 2427691, 2774504, 4855382, 9710764, 19421528]

約数ペア:

[(1, 19421528), (2, 9710764), (4, 4855382), (7, 2774504), (8, 2427691), (14, 1387252), (28, 693626), (47, 413224), (56, 346813), (94, 206612), (157, 123704), (188, 103306), (314, 61852), (329, 59032), (376, 51653), (628, 30926), (658, 29516), (1099, 17672), (1256, 15463), (1316, 14758), (2198, 8836), (2209, 8792), (2632, 7379), (4396, 4418)]