19561956

素因数分解:

$2^2\times 3^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 46893504

約数和(自身を除く): 27331548

約数列:

[1, 2, 3, 4, 6, 12, 73, 137, 146, 163, 219, 274, 292, 326, 411, 438, 489, 548, 652, 822, 876, 978, 1644, 1956, 10001, 11899, 20002, 22331, 23798, 30003, 35697, 40004, 44662, 47596, 60006, 66993, 71394, 89324, 120012, 133986, 142788, 267972, 1630163, 3260326, 4890489, 6520652, 9780978, 19561956]

約数ペア:

[(1, 19561956), (2, 9780978), (3, 6520652), (4, 4890489), (6, 3260326), (12, 1630163), (73, 267972), (137, 142788), (146, 133986), (163, 120012), (219, 89324), (274, 71394), (292, 66993), (326, 60006), (411, 47596), (438, 44662), (489, 40004), (548, 35697), (652, 30003), (822, 23798), (876, 22331), (978, 20002), (1644, 11899), (1956, 10001)]