21500244

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{131}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 56504448

約数和(自身を除く): 35004204

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 97, 131, 141, 188, 194, 262, 282, 291, 388, 393, 423, 524, 564, 582, 786, 846, 873, 1164, 1179, 1572, 1692, 1746, 2358, 3492, 4559, 4716, 6157, 9118, 12314, 12707, 13677, 18236, 18471, 24628, 25414, 27354, 36942, 38121, 41031, 50828, 54708, 55413, 73884, 76242, 82062, 110826, 114363, 152484, 164124, 221652, 228726, 457452, 597229, 1194458, 1791687, 2388916, 3583374, 5375061, 7166748, 10750122, 21500244]

約数ペア:

[(1, 21500244), (2, 10750122), (3, 7166748), (4, 5375061), (6, 3583374), (9, 2388916), (12, 1791687), (18, 1194458), (36, 597229), (47, 457452), (94, 228726), (97, 221652), (131, 164124), (141, 152484), (188, 114363), (194, 110826), (262, 82062), (282, 76242), (291, 73884), (388, 55413), (393, 54708), (423, 50828), (524, 41031), (564, 38121), (582, 36942), (786, 27354), (846, 25414), (873, 24628), (1164, 18471), (1179, 18236), (1572, 13677), (1692, 12707), (1746, 12314), (2358, 9118), (3492, 6157), (4559, 4716)]