661206

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{173}}^1$

素因数の和:205

約数の個数: 48

約数和(自身を含む): 1666224

約数和(自身を除く): 1005018

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 78, 91, 98, 147, 173, 182, 273, 294, 346, 519, 546, 637, 1038, 1211, 1274, 1911, 2249, 2422, 3633, 3822, 4498, 6747, 7266, 8477, 13494, 15743, 16954, 25431, 31486, 47229, 50862, 94458, 110201, 220402, 330603, 661206]

約数ペア:

[(1, 661206), (2, 330603), (3, 220402), (6, 110201), (7, 94458), (13, 50862), (14, 47229), (21, 31486), (26, 25431), (39, 16954), (42, 15743), (49, 13494), (78, 8477), (91, 7266), (98, 6747), (147, 4498), (173, 3822), (182, 3633), (273, 2422), (294, 2249), (346, 1911), (519, 1274), (546, 1211), (637, 1038)]