18786972

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{131}}^1$

素因数の和:211

約数の個数: 96

約数和(自身を含む): 50561280

約数和(自身を除く): 31774308

約数列:

[1, 2, 3, 4, 6, 12, 17, 19, 34, 37, 38, 51, 57, 68, 74, 76, 102, 111, 114, 131, 148, 204, 222, 228, 262, 323, 393, 444, 524, 629, 646, 703, 786, 969, 1258, 1292, 1406, 1572, 1887, 1938, 2109, 2227, 2489, 2516, 2812, 3774, 3876, 4218, 4454, 4847, 4978, 6681, 7467, 7548, 8436, 8908, 9694, 9956, 11951, 13362, 14541, 14934, 19388, 23902, 26724, 29082, 29868, 35853, 42313, 47804, 58164, 71706, 82399, 84626, 92093, 126939, 143412, 164798, 169252, 184186, 247197, 253878, 276279, 329596, 368372, 494394, 507756, 552558, 988788, 1105116, 1565581, 3131162, 4696743, 6262324, 9393486, 18786972]

約数ペア:

[(1, 18786972), (2, 9393486), (3, 6262324), (4, 4696743), (6, 3131162), (12, 1565581), (17, 1105116), (19, 988788), (34, 552558), (37, 507756), (38, 494394), (51, 368372), (57, 329596), (68, 276279), (74, 253878), (76, 247197), (102, 184186), (111, 169252), (114, 164798), (131, 143412), (148, 126939), (204, 92093), (222, 84626), (228, 82399), (262, 71706), (323, 58164), (393, 47804), (444, 42313), (524, 35853), (629, 29868), (646, 29082), (703, 26724), (786, 23902), (969, 19388), (1258, 14934), (1292, 14541), (1406, 13362), (1572, 11951), (1887, 9956), (1938, 9694), (2109, 8908), (2227, 8436), (2489, 7548), (2516, 7467), (2812, 6681), (3774, 4978), (3876, 4847), (4218, 4454)]