19078185

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:238

約数の個数: 64

約数和(自身を含む): 37509120

約数和(自身を除く): 18430935

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 57, 73, 95, 105, 131, 133, 219, 285, 365, 393, 399, 511, 655, 665, 917, 1095, 1387, 1533, 1965, 1995, 2489, 2555, 2751, 4161, 4585, 6935, 7467, 7665, 9563, 9709, 12445, 13755, 17423, 20805, 28689, 29127, 37335, 47815, 48545, 52269, 66941, 87115, 143445, 145635, 181697, 200823, 261345, 334705, 545091, 908485, 1004115, 1271879, 2725455, 3815637, 6359395, 19078185]

約数ペア:

[(1, 19078185), (3, 6359395), (5, 3815637), (7, 2725455), (15, 1271879), (19, 1004115), (21, 908485), (35, 545091), (57, 334705), (73, 261345), (95, 200823), (105, 181697), (131, 145635), (133, 143445), (219, 87115), (285, 66941), (365, 52269), (393, 48545), (399, 47815), (511, 37335), (655, 29127), (665, 28689), (917, 20805), (1095, 17423), (1387, 13755), (1533, 12445), (1965, 9709), (1995, 9563), (2489, 7665), (2555, 7467), (2751, 6935), (4161, 4585)]