21769904

素因数分解:

$2^4\times {\mathrm{13}}^2\times {\mathrm{83}}^1\times {\mathrm{97}}^1$

素因数の和:214

約数の個数: 60

約数和(自身を含む): 46700136

約数和(自身を除く): 24930232

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 83, 97, 104, 166, 169, 194, 208, 332, 338, 388, 664, 676, 776, 1079, 1261, 1328, 1352, 1552, 2158, 2522, 2704, 4316, 5044, 8051, 8632, 10088, 14027, 16102, 16393, 17264, 20176, 28054, 32204, 32786, 56108, 64408, 65572, 104663, 112216, 128816, 131144, 209326, 224432, 262288, 418652, 837304, 1360619, 1674608, 2721238, 5442476, 10884952, 21769904]

約数ペア:

[(1, 21769904), (2, 10884952), (4, 5442476), (8, 2721238), (13, 1674608), (16, 1360619), (26, 837304), (52, 418652), (83, 262288), (97, 224432), (104, 209326), (166, 131144), (169, 128816), (194, 112216), (208, 104663), (332, 65572), (338, 64408), (388, 56108), (664, 32786), (676, 32204), (776, 28054), (1079, 20176), (1261, 17264), (1328, 16393), (1352, 16102), (1552, 14027), (2158, 10088), (2522, 8632), (2704, 8051), (4316, 5044)]