18719176

素因数分解:

$2^3\times 7^2\times {\mathrm{17}}^1\times {\mathrm{53}}^2$

素因数の和:143

約数の個数: 72

約数和(自身を含む): 44061570

約数和(自身を除く): 25342394

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 49, 53, 56, 68, 98, 106, 119, 136, 196, 212, 238, 371, 392, 424, 476, 742, 833, 901, 952, 1484, 1666, 1802, 2597, 2809, 2968, 3332, 3604, 5194, 5618, 6307, 6664, 7208, 10388, 11236, 12614, 19663, 20776, 22472, 25228, 39326, 44149, 47753, 50456, 78652, 88298, 95506, 137641, 157304, 176596, 191012, 275282, 334271, 353192, 382024, 550564, 668542, 1101128, 1337084, 2339897, 2674168, 4679794, 9359588, 18719176]

約数ペア:

[(1, 18719176), (2, 9359588), (4, 4679794), (7, 2674168), (8, 2339897), (14, 1337084), (17, 1101128), (28, 668542), (34, 550564), (49, 382024), (53, 353192), (56, 334271), (68, 275282), (98, 191012), (106, 176596), (119, 157304), (136, 137641), (196, 95506), (212, 88298), (238, 78652), (371, 50456), (392, 47753), (424, 44149), (476, 39326), (742, 25228), (833, 22472), (901, 20776), (952, 19663), (1484, 12614), (1666, 11236), (1802, 10388), (2597, 7208), (2809, 6664), (2968, 6307), (3332, 5618), (3604, 5194)]