21785988

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:174

約数の個数: 96

約数和(自身を含む): 60928000

約数和(自身を除く): 39142012

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 67, 79, 84, 98, 134, 147, 158, 196, 201, 237, 268, 294, 316, 343, 402, 469, 474, 553, 588, 686, 804, 938, 948, 1029, 1106, 1372, 1407, 1659, 1876, 2058, 2212, 2814, 3283, 3318, 3871, 4116, 5293, 5628, 6566, 6636, 7742, 9849, 10586, 11613, 13132, 15484, 15879, 19698, 21172, 22981, 23226, 27097, 31758, 37051, 39396, 45962, 46452, 54194, 63516, 68943, 74102, 81291, 91924, 108388, 111153, 137886, 148204, 162582, 222306, 259357, 275772, 325164, 444612, 518714, 778071, 1037428, 1556142, 1815499, 3112284, 3630998, 5446497, 7261996, 10892994, 21785988]

約数ペア:

[(1, 21785988), (2, 10892994), (3, 7261996), (4, 5446497), (6, 3630998), (7, 3112284), (12, 1815499), (14, 1556142), (21, 1037428), (28, 778071), (42, 518714), (49, 444612), (67, 325164), (79, 275772), (84, 259357), (98, 222306), (134, 162582), (147, 148204), (158, 137886), (196, 111153), (201, 108388), (237, 91924), (268, 81291), (294, 74102), (316, 68943), (343, 63516), (402, 54194), (469, 46452), (474, 45962), (553, 39396), (588, 37051), (686, 31758), (804, 27097), (938, 23226), (948, 22981), (1029, 21172), (1106, 19698), (1372, 15879), (1407, 15484), (1659, 13132), (1876, 11613), (2058, 10586), (2212, 9849), (2814, 7742), (3283, 6636), (3318, 6566), (3871, 5628), (4116, 5293)]