20807904

素因数分解:

$2^5\times 3^1\times {\mathrm{13}}^1\times {\mathrm{16673}}^1$

素因数の和:16699

約数の個数: 48

約数和(自身を含む): 58825872

約数和(自身を除く): 38017968

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 32, 39, 48, 52, 78, 96, 104, 156, 208, 312, 416, 624, 1248, 16673, 33346, 50019, 66692, 100038, 133384, 200076, 216749, 266768, 400152, 433498, 533536, 650247, 800304, 866996, 1300494, 1600608, 1733992, 2600988, 3467984, 5201976, 6935968, 10403952, 20807904]

約数ペア:

[(1, 20807904), (2, 10403952), (3, 6935968), (4, 5201976), (6, 3467984), (8, 2600988), (12, 1733992), (13, 1600608), (16, 1300494), (24, 866996), (26, 800304), (32, 650247), (39, 533536), (48, 433498), (52, 400152), (78, 266768), (96, 216749), (104, 200076), (156, 133384), (208, 100038), (312, 66692), (416, 50019), (624, 33346), (1248, 16673)]