19664586

素因数分解:

$2^1\times 3^3\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{223}}^1$

素因数の和:328

約数の個数: 64

約数和(自身を含む): 46448640

約数和(自身を除く): 26784054

約数列:

[1, 2, 3, 6, 9, 18, 23, 27, 46, 54, 69, 71, 138, 142, 207, 213, 223, 414, 426, 446, 621, 639, 669, 1242, 1278, 1338, 1633, 1917, 2007, 3266, 3834, 4014, 4899, 5129, 6021, 9798, 10258, 12042, 14697, 15387, 15833, 29394, 30774, 31666, 44091, 46161, 47499, 88182, 92322, 94998, 138483, 142497, 276966, 284994, 364159, 427491, 728318, 854982, 1092477, 2184954, 3277431, 6554862, 9832293, 19664586]

約数ペア:

[(1, 19664586), (2, 9832293), (3, 6554862), (6, 3277431), (9, 2184954), (18, 1092477), (23, 854982), (27, 728318), (46, 427491), (54, 364159), (69, 284994), (71, 276966), (138, 142497), (142, 138483), (207, 94998), (213, 92322), (223, 88182), (414, 47499), (426, 46161), (446, 44091), (621, 31666), (639, 30774), (669, 29394), (1242, 15833), (1278, 15387), (1338, 14697), (1633, 12042), (1917, 10258), (2007, 9798), (3266, 6021), (3834, 5129), (4014, 4899)]