21244980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{883}}^1$

素因数の和:1296

約数の個数: 48

約数和(自身を含む): 59701824

約数和(自身を除く): 38456844

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 401, 802, 883, 1203, 1604, 1766, 2005, 2406, 2649, 3532, 4010, 4415, 4812, 5298, 6015, 8020, 8830, 10596, 12030, 13245, 17660, 24060, 26490, 52980, 354083, 708166, 1062249, 1416332, 1770415, 2124498, 3540830, 4248996, 5311245, 7081660, 10622490, 21244980]

約数ペア:

[(1, 21244980), (2, 10622490), (3, 7081660), (4, 5311245), (5, 4248996), (6, 3540830), (10, 2124498), (12, 1770415), (15, 1416332), (20, 1062249), (30, 708166), (60, 354083), (401, 52980), (802, 26490), (883, 24060), (1203, 17660), (1604, 13245), (1766, 12030), (2005, 10596), (2406, 8830), (2649, 8020), (3532, 6015), (4010, 5298), (4415, 4812)]