21113784

素因数分解:

$2^3\times 3^5\times {\mathrm{10861}}^1$

素因数の和:10882

約数の個数: 48

約数和(自身を含む): 59306520

約数和(自身を除く): 38192736

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 243, 324, 486, 648, 972, 1944, 10861, 21722, 32583, 43444, 65166, 86888, 97749, 130332, 195498, 260664, 293247, 390996, 586494, 781992, 879741, 1172988, 1759482, 2345976, 2639223, 3518964, 5278446, 7037928, 10556892, 21113784]

約数ペア:

[(1, 21113784), (2, 10556892), (3, 7037928), (4, 5278446), (6, 3518964), (8, 2639223), (9, 2345976), (12, 1759482), (18, 1172988), (24, 879741), (27, 781992), (36, 586494), (54, 390996), (72, 293247), (81, 260664), (108, 195498), (162, 130332), (216, 97749), (243, 86888), (324, 65166), (486, 43444), (648, 32583), (972, 21722), (1944, 10861)]