21406403278

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1\times {\mathrm{4261}}^1$

素因数の和:4601

約数の個数: 64

約数和(自身を含む): 37393219584

約数和(自身を除く): 15986816306

約数列:

[1, 2, 13, 23, 26, 31, 46, 62, 271, 299, 403, 542, 598, 713, 806, 1426, 3523, 4261, 6233, 7046, 8401, 8522, 9269, 12466, 16802, 18538, 55393, 81029, 98003, 109213, 110786, 132091, 162058, 193223, 196006, 218426, 264182, 386446, 1154731, 1274039, 1717183, 2309462, 2511899, 2548078, 3038093, 3434366, 5023798, 6076186, 15011503, 26558813, 30023006, 35796661, 39495209, 53117626, 71593322, 78990418, 345264569, 465356593, 690529138, 823323203, 930713186, 1646646406, 10703201639, 21406403278]

約数ペア:

[(1, 21406403278), (2, 10703201639), (13, 1646646406), (23, 930713186), (26, 823323203), (31, 690529138), (46, 465356593), (62, 345264569), (271, 78990418), (299, 71593322), (403, 53117626), (542, 39495209), (598, 35796661), (713, 30023006), (806, 26558813), (1426, 15011503), (3523, 6076186), (4261, 5023798), (6233, 3434366), (7046, 3038093), (8401, 2548078), (8522, 2511899), (9269, 2309462), (12466, 1717183), (16802, 1274039), (18538, 1154731), (55393, 386446), (81029, 264182), (98003, 218426), (109213, 196006), (110786, 193223), (132091, 162058)]