18990804

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:269

約数の個数: 96

約数和(自身を含む): 54369280

約数和(自身を除く): 35378476

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 73, 76, 84, 114, 133, 146, 163, 219, 228, 266, 292, 326, 399, 438, 489, 511, 532, 652, 798, 876, 978, 1022, 1141, 1387, 1533, 1596, 1956, 2044, 2282, 2774, 3066, 3097, 3423, 4161, 4564, 5548, 6132, 6194, 6846, 8322, 9291, 9709, 11899, 12388, 13692, 16644, 18582, 19418, 21679, 23798, 29127, 35697, 37164, 38836, 43358, 47596, 58254, 65037, 71394, 83293, 86716, 116508, 130074, 142788, 166586, 226081, 249879, 260148, 333172, 452162, 499758, 678243, 904324, 999516, 1356486, 1582567, 2712972, 3165134, 4747701, 6330268, 9495402, 18990804]

約数ペア:

[(1, 18990804), (2, 9495402), (3, 6330268), (4, 4747701), (6, 3165134), (7, 2712972), (12, 1582567), (14, 1356486), (19, 999516), (21, 904324), (28, 678243), (38, 499758), (42, 452162), (57, 333172), (73, 260148), (76, 249879), (84, 226081), (114, 166586), (133, 142788), (146, 130074), (163, 116508), (219, 86716), (228, 83293), (266, 71394), (292, 65037), (326, 58254), (399, 47596), (438, 43358), (489, 38836), (511, 37164), (532, 35697), (652, 29127), (798, 23798), (876, 21679), (978, 19418), (1022, 18582), (1141, 16644), (1387, 13692), (1533, 12388), (1596, 11899), (1956, 9709), (2044, 9291), (2282, 8322), (2774, 6846), (3066, 6194), (3097, 6132), (3423, 5548), (4161, 4564)]