21185996812

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{1291}}^1\times {\mathrm{1487}}^1$

素因数の和:2902

約数の個数: 48

約数和(自身を含む): 38757519360

約数和(自身を除く): 17571522548

約数列:

[1, 2, 4, 31, 62, 89, 124, 178, 356, 1291, 1487, 2582, 2759, 2974, 5164, 5518, 5948, 11036, 40021, 46097, 80042, 92194, 114899, 132343, 160084, 184388, 229798, 264686, 459596, 529372, 1919717, 3561869, 3839434, 4102633, 7123738, 7678868, 8205266, 14247476, 16410532, 59511227, 119022454, 170854813, 238044908, 341709626, 683419252, 5296499203, 10592998406, 21185996812]

約数ペア:

[(1, 21185996812), (2, 10592998406), (4, 5296499203), (31, 683419252), (62, 341709626), (89, 238044908), (124, 170854813), (178, 119022454), (356, 59511227), (1291, 16410532), (1487, 14247476), (2582, 8205266), (2759, 7678868), (2974, 7123738), (5164, 4102633), (5518, 3839434), (5948, 3561869), (11036, 1919717), (40021, 529372), (46097, 459596), (80042, 264686), (92194, 229798), (114899, 184388), (132343, 160084)]