20281646

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{127}}^1$

素因数の和:225

約数の個数: 64

約数和(自身を含む): 41140224

約数和(自身を除く): 20858578

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 61, 77, 119, 122, 127, 154, 187, 238, 254, 374, 427, 671, 854, 889, 1037, 1309, 1342, 1397, 1778, 2074, 2159, 2618, 2794, 4318, 4697, 7259, 7747, 9394, 9779, 11407, 14518, 15113, 15494, 19558, 22814, 23749, 30226, 47498, 54229, 79849, 85217, 108458, 131699, 159698, 166243, 170434, 263398, 332486, 596519, 921893, 1193038, 1448689, 1843786, 2897378, 10140823, 20281646]

約数ペア:

[(1, 20281646), (2, 10140823), (7, 2897378), (11, 1843786), (14, 1448689), (17, 1193038), (22, 921893), (34, 596519), (61, 332486), (77, 263398), (119, 170434), (122, 166243), (127, 159698), (154, 131699), (187, 108458), (238, 85217), (254, 79849), (374, 54229), (427, 47498), (671, 30226), (854, 23749), (889, 22814), (1037, 19558), (1309, 15494), (1342, 15113), (1397, 14518), (1778, 11407), (2074, 9779), (2159, 9394), (2618, 7747), (2794, 7259), (4318, 4697)]