21407706

素因数分解:

$2^1\times 3^3\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1$

素因数の和:236

約数の個数: 64

約数和(自身を含む): 49580160

約数和(自身を除く): 28172454

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 61, 67, 97, 122, 134, 183, 194, 201, 291, 366, 402, 549, 582, 603, 873, 1098, 1206, 1647, 1746, 1809, 2619, 3294, 3618, 4087, 5238, 5917, 6499, 8174, 11834, 12261, 12998, 17751, 19497, 24522, 35502, 36783, 38994, 53253, 58491, 73566, 106506, 110349, 116982, 159759, 175473, 220698, 319518, 350946, 396439, 792878, 1189317, 2378634, 3567951, 7135902, 10703853, 21407706]

約数ペア:

[(1, 21407706), (2, 10703853), (3, 7135902), (6, 3567951), (9, 2378634), (18, 1189317), (27, 792878), (54, 396439), (61, 350946), (67, 319518), (97, 220698), (122, 175473), (134, 159759), (183, 116982), (194, 110349), (201, 106506), (291, 73566), (366, 58491), (402, 53253), (549, 38994), (582, 36783), (603, 35502), (873, 24522), (1098, 19497), (1206, 17751), (1647, 12998), (1746, 12261), (1809, 11834), (2619, 8174), (3294, 6499), (3618, 5917), (4087, 5238)]