19839969

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 32348160

約数和(自身を除く): 12508191

約数列:

[1, 3, 9, 17, 31, 47, 51, 89, 93, 141, 153, 267, 279, 423, 527, 799, 801, 1457, 1513, 1581, 2397, 2759, 4183, 4371, 4539, 4743, 7191, 8277, 12549, 13113, 13617, 24769, 24831, 37647, 46903, 71111, 74307, 129673, 140709, 213333, 222921, 389019, 422127, 639999, 1167057, 2204441, 6613323, 19839969]

約数ペア:

[(1, 19839969), (3, 6613323), (9, 2204441), (17, 1167057), (31, 639999), (47, 422127), (51, 389019), (89, 222921), (93, 213333), (141, 140709), (153, 129673), (267, 74307), (279, 71111), (423, 46903), (527, 37647), (799, 24831), (801, 24769), (1457, 13617), (1513, 13113), (1581, 12549), (2397, 8277), (2759, 7191), (4183, 4743), (4371, 4539)]