21706660

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{167}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 47021184

約数和(自身を除く): 25314524

約数列:

[1, 2, 4, 5, 10, 20, 67, 97, 134, 167, 194, 268, 334, 335, 388, 485, 668, 670, 835, 970, 1340, 1670, 1940, 3340, 6499, 11189, 12998, 16199, 22378, 25996, 32398, 32495, 44756, 55945, 64796, 64990, 80995, 111890, 129980, 161990, 223780, 323980, 1085333, 2170666, 4341332, 5426665, 10853330, 21706660]

約数ペア:

[(1, 21706660), (2, 10853330), (4, 5426665), (5, 4341332), (10, 2170666), (20, 1085333), (67, 323980), (97, 223780), (134, 161990), (167, 129980), (194, 111890), (268, 80995), (334, 64990), (335, 64796), (388, 55945), (485, 44756), (668, 32495), (670, 32398), (835, 25996), (970, 22378), (1340, 16199), (1670, 12998), (1940, 11189), (3340, 6499)]