20563466

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{61}}^1\times {\mathrm{199}}^1$

素因数の和:291

約数の個数: 48

約数和(自身を含む): 39580800

約数和(自身を除く): 19017334

約数列:

[1, 2, 7, 11, 14, 22, 61, 77, 121, 122, 154, 199, 242, 398, 427, 671, 847, 854, 1342, 1393, 1694, 2189, 2786, 4378, 4697, 7381, 9394, 12139, 14762, 15323, 24079, 24278, 30646, 48158, 51667, 84973, 103334, 133529, 168553, 169946, 267058, 337106, 934703, 1468819, 1869406, 2937638, 10281733, 20563466]

約数ペア:

[(1, 20563466), (2, 10281733), (7, 2937638), (11, 1869406), (14, 1468819), (22, 934703), (61, 337106), (77, 267058), (121, 169946), (122, 168553), (154, 133529), (199, 103334), (242, 84973), (398, 51667), (427, 48158), (671, 30646), (847, 24278), (854, 24079), (1342, 15323), (1393, 14762), (1694, 12139), (2189, 9394), (2786, 7381), (4378, 4697)]