21443696

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{173}}^1$

素因数の和:369

約数の個数: 40

約数和(自身を含む): 42806784

約数和(自身を除く): 21363088

約数列:

[1, 2, 4, 8, 16, 61, 122, 127, 173, 244, 254, 346, 488, 508, 692, 976, 1016, 1384, 2032, 2768, 7747, 10553, 15494, 21106, 21971, 30988, 42212, 43942, 61976, 84424, 87884, 123952, 168848, 175768, 351536, 1340231, 2680462, 5360924, 10721848, 21443696]

約数ペア:

[(1, 21443696), (2, 10721848), (4, 5360924), (8, 2680462), (16, 1340231), (61, 351536), (122, 175768), (127, 168848), (173, 123952), (244, 87884), (254, 84424), (346, 61976), (488, 43942), (508, 42212), (692, 30988), (976, 21971), (1016, 21106), (1384, 15494), (2032, 10553), (2768, 7747)]