18647944

素因数分解:

$2^3\times 7^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1$

素因数の和:230

約数の個数: 64

約数和(自身を含む): 41783040

約数和(自身を除く): 23135096

約数列:

[1, 2, 4, 7, 8, 14, 28, 53, 56, 61, 103, 106, 122, 206, 212, 244, 371, 412, 424, 427, 488, 721, 742, 824, 854, 1442, 1484, 1708, 2884, 2968, 3233, 3416, 5459, 5768, 6283, 6466, 10918, 12566, 12932, 21836, 22631, 25132, 25864, 38213, 43672, 43981, 45262, 50264, 76426, 87962, 90524, 152852, 175924, 181048, 305704, 332999, 351848, 665998, 1331996, 2330993, 2663992, 4661986, 9323972, 18647944]

約数ペア:

[(1, 18647944), (2, 9323972), (4, 4661986), (7, 2663992), (8, 2330993), (14, 1331996), (28, 665998), (53, 351848), (56, 332999), (61, 305704), (103, 181048), (106, 175924), (122, 152852), (206, 90524), (212, 87962), (244, 76426), (371, 50264), (412, 45262), (424, 43981), (427, 43672), (488, 38213), (721, 25864), (742, 25132), (824, 22631), (854, 21836), (1442, 12932), (1484, 12566), (1708, 10918), (2884, 6466), (2968, 6283), (3233, 5768), (3416, 5459)]