20921808

素因数分解:

$2^4\times 3^1\times {\mathrm{41}}^1\times {\mathrm{10631}}^1$

素因数の和:10683

約数の個数: 40

約数和(自身を含む): 55371456

約数和(自身を除く): 34449648

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 41, 48, 82, 123, 164, 246, 328, 492, 656, 984, 1968, 10631, 21262, 31893, 42524, 63786, 85048, 127572, 170096, 255144, 435871, 510288, 871742, 1307613, 1743484, 2615226, 3486968, 5230452, 6973936, 10460904, 20921808]

約数ペア:

[(1, 20921808), (2, 10460904), (3, 6973936), (4, 5230452), (6, 3486968), (8, 2615226), (12, 1743484), (16, 1307613), (24, 871742), (41, 510288), (48, 435871), (82, 255144), (123, 170096), (164, 127572), (246, 85048), (328, 63786), (492, 42524), (656, 31893), (984, 21262), (1968, 10631)]