21301344

素因数分解:

$2^5\times 3^2\times {\mathrm{37}}^1\times {\mathrm{1999}}^1$

素因数の和:2052

約数の個数: 72

約数和(自身を含む): 62244000

約数和(自身を除く): 40942656

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 37, 48, 72, 74, 96, 111, 144, 148, 222, 288, 296, 333, 444, 592, 666, 888, 1184, 1332, 1776, 1999, 2664, 3552, 3998, 5328, 5997, 7996, 10656, 11994, 15992, 17991, 23988, 31984, 35982, 47976, 63968, 71964, 73963, 95952, 143928, 147926, 191904, 221889, 287856, 295852, 443778, 575712, 591704, 665667, 887556, 1183408, 1331334, 1775112, 2366816, 2662668, 3550224, 5325336, 7100448, 10650672, 21301344]

約数ペア:

[(1, 21301344), (2, 10650672), (3, 7100448), (4, 5325336), (6, 3550224), (8, 2662668), (9, 2366816), (12, 1775112), (16, 1331334), (18, 1183408), (24, 887556), (32, 665667), (36, 591704), (37, 575712), (48, 443778), (72, 295852), (74, 287856), (96, 221889), (111, 191904), (144, 147926), (148, 143928), (222, 95952), (288, 73963), (296, 71964), (333, 63968), (444, 47976), (592, 35982), (666, 31984), (888, 23988), (1184, 17991), (1332, 15992), (1776, 11994), (1999, 10656), (2664, 7996), (3552, 5997), (3998, 5328)]