19991567246

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{337}}^1\times {\mathrm{2579}}^1$

素因数の和:3009

約数の個数: 64

約数和(自身を含む): 36165242880

約数和(自身を除く): 16173675634

約数列:

[1, 2, 7, 14, 31, 53, 62, 106, 217, 337, 371, 434, 674, 742, 1643, 2359, 2579, 3286, 4718, 5158, 10447, 11501, 17861, 18053, 20894, 23002, 35722, 36106, 73129, 79949, 125027, 136687, 146258, 159898, 250054, 273374, 553691, 559643, 869123, 956809, 1107382, 1119286, 1738246, 1913618, 3875837, 4237297, 6083861, 7751674, 8474594, 12167722, 26942813, 29661079, 46063519, 53885626, 59322158, 92127038, 188599691, 322444633, 377199382, 644889266, 1427969089, 2855938178, 9995783623, 19991567246]

約数ペア:

[(1, 19991567246), (2, 9995783623), (7, 2855938178), (14, 1427969089), (31, 644889266), (53, 377199382), (62, 322444633), (106, 188599691), (217, 92127038), (337, 59322158), (371, 53885626), (434, 46063519), (674, 29661079), (742, 26942813), (1643, 12167722), (2359, 8474594), (2579, 7751674), (3286, 6083861), (4718, 4237297), (5158, 3875837), (10447, 1913618), (11501, 1738246), (17861, 1119286), (18053, 1107382), (20894, 956809), (23002, 869123), (35722, 559643), (36106, 553691), (73129, 273374), (79949, 250054), (125027, 159898), (136687, 146258)]