388623837

素因数分解:

$3^1\times 7^1\times {\mathrm{113}}^1\times {\mathrm{389}}^1\times {\mathrm{421}}^1$

素因数の和:933

約数の個数: 32

約数和(自身を含む): 600387840

約数和(自身を除く): 211764003

約数列:

[1, 3, 7, 21, 113, 339, 389, 421, 791, 1167, 1263, 2373, 2723, 2947, 8169, 8841, 43957, 47573, 131871, 142719, 163769, 307699, 333011, 491307, 923097, 999033, 1146383, 3439149, 18505897, 55517691, 129541279, 388623837]

約数ペア:

[(1, 388623837), (3, 129541279), (7, 55517691), (21, 18505897), (113, 3439149), (339, 1146383), (389, 999033), (421, 923097), (791, 491307), (1167, 333011), (1263, 307699), (2373, 163769), (2723, 142719), (2947, 131871), (8169, 47573), (8841, 43957)]