18943496

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{571}}^1$

素因数の和:630

約数の個数: 64

約数和(自身を含む): 43243200

約数和(自身を除く): 24299704

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 29, 44, 52, 58, 88, 104, 116, 143, 232, 286, 319, 377, 571, 572, 638, 754, 1142, 1144, 1276, 1508, 2284, 2552, 3016, 4147, 4568, 6281, 7423, 8294, 12562, 14846, 16559, 16588, 25124, 29692, 33118, 33176, 50248, 59384, 66236, 81653, 132472, 163306, 182149, 215267, 326612, 364298, 430534, 653224, 728596, 861068, 1457192, 1722136, 2367937, 4735874, 9471748, 18943496]

約数ペア:

[(1, 18943496), (2, 9471748), (4, 4735874), (8, 2367937), (11, 1722136), (13, 1457192), (22, 861068), (26, 728596), (29, 653224), (44, 430534), (52, 364298), (58, 326612), (88, 215267), (104, 182149), (116, 163306), (143, 132472), (232, 81653), (286, 66236), (319, 59384), (377, 50248), (571, 33176), (572, 33118), (638, 29692), (754, 25124), (1142, 16588), (1144, 16559), (1276, 14846), (1508, 12562), (2284, 8294), (2552, 7423), (3016, 6281), (4147, 4568)]