21105672

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 62298720

約数和(自身を除く): 41193048

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 131, 137, 147, 168, 196, 262, 274, 294, 392, 393, 411, 524, 548, 588, 786, 822, 917, 959, 1048, 1096, 1176, 1572, 1644, 1834, 1918, 2751, 2877, 3144, 3288, 3668, 3836, 5502, 5754, 6419, 6713, 7336, 7672, 11004, 11508, 12838, 13426, 17947, 19257, 20139, 22008, 23016, 25676, 26852, 35894, 38514, 40278, 51352, 53704, 53841, 71788, 77028, 80556, 107682, 125629, 143576, 154056, 161112, 215364, 251258, 376887, 430728, 502516, 753774, 879403, 1005032, 1507548, 1758806, 2638209, 3015096, 3517612, 5276418, 7035224, 10552836, 21105672]

約数ペア:

[(1, 21105672), (2, 10552836), (3, 7035224), (4, 5276418), (6, 3517612), (7, 3015096), (8, 2638209), (12, 1758806), (14, 1507548), (21, 1005032), (24, 879403), (28, 753774), (42, 502516), (49, 430728), (56, 376887), (84, 251258), (98, 215364), (131, 161112), (137, 154056), (147, 143576), (168, 125629), (196, 107682), (262, 80556), (274, 77028), (294, 71788), (392, 53841), (393, 53704), (411, 51352), (524, 40278), (548, 38514), (588, 35894), (786, 26852), (822, 25676), (917, 23016), (959, 22008), (1048, 20139), (1096, 19257), (1176, 17947), (1572, 13426), (1644, 12838), (1834, 11508), (1918, 11004), (2751, 7672), (2877, 7336), (3144, 6713), (3288, 6419), (3668, 5754), (3836, 5502)]