21860820

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{40483}}^1$

素因数の和:40501

約数の個数: 48

約数和(自身を含む): 68013120

約数和(自身を除く): 46152300

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 40483, 80966, 121449, 161932, 202415, 242898, 364347, 404830, 485796, 607245, 728694, 809660, 1093041, 1214490, 1457388, 1821735, 2186082, 2428980, 3643470, 4372164, 5465205, 7286940, 10930410, 21860820]

約数ペア:

[(1, 21860820), (2, 10930410), (3, 7286940), (4, 5465205), (5, 4372164), (6, 3643470), (9, 2428980), (10, 2186082), (12, 1821735), (15, 1457388), (18, 1214490), (20, 1093041), (27, 809660), (30, 728694), (36, 607245), (45, 485796), (54, 404830), (60, 364347), (90, 242898), (108, 202415), (135, 161932), (180, 121449), (270, 80966), (540, 40483)]