21894376

素因数分解:

$2^3\times 7^3\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:207

約数の個数: 64

約数和(自身を含む): 48960000

約数和(自身を除く): 27065624

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 79, 98, 101, 158, 196, 202, 316, 343, 392, 404, 553, 632, 686, 707, 808, 1106, 1372, 1414, 2212, 2744, 2828, 3871, 4424, 4949, 5656, 7742, 7979, 9898, 15484, 15958, 19796, 27097, 30968, 31916, 34643, 39592, 54194, 55853, 63832, 69286, 108388, 111706, 138572, 216776, 223412, 277144, 390971, 446824, 781942, 1563884, 2736797, 3127768, 5473594, 10947188, 21894376]

約数ペア:

[(1, 21894376), (2, 10947188), (4, 5473594), (7, 3127768), (8, 2736797), (14, 1563884), (28, 781942), (49, 446824), (56, 390971), (79, 277144), (98, 223412), (101, 216776), (158, 138572), (196, 111706), (202, 108388), (316, 69286), (343, 63832), (392, 55853), (404, 54194), (553, 39592), (632, 34643), (686, 31916), (707, 30968), (808, 27097), (1106, 19796), (1372, 15958), (1414, 15484), (2212, 9898), (2744, 7979), (2828, 7742), (3871, 5656), (4424, 4949)]