21000455268

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{347}}^1\times {\mathrm{2791}}^1$

素因数の和:3297

約数の個数: 96

約数和(自身を含む): 53322286080

約数和(自身を除く): 32321830812

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 139, 156, 278, 347, 417, 556, 694, 834, 1041, 1388, 1668, 1807, 2082, 2791, 3614, 4164, 4511, 5421, 5582, 7228, 8373, 9022, 10842, 11164, 13533, 16746, 18044, 21684, 27066, 33492, 36283, 48233, 54132, 72566, 96466, 108849, 144699, 145132, 192932, 217698, 289398, 387949, 435396, 578796, 627029, 775898, 968477, 1163847, 1254058, 1551796, 1881087, 1936954, 2327694, 2508116, 2905431, 3762174, 3873908, 4655388, 5043337, 5810862, 7524348, 10086674, 11621724, 12590201, 15130011, 20173348, 25180402, 30260022, 37770603, 50360804, 60520044, 75541206, 134618303, 151082412, 269236606, 403854909, 538473212, 807709818, 1615419636, 1750037939, 3500075878, 5250113817, 7000151756, 10500227634, 21000455268]

約数ペア:

[(1, 21000455268), (2, 10500227634), (3, 7000151756), (4, 5250113817), (6, 3500075878), (12, 1750037939), (13, 1615419636), (26, 807709818), (39, 538473212), (52, 403854909), (78, 269236606), (139, 151082412), (156, 134618303), (278, 75541206), (347, 60520044), (417, 50360804), (556, 37770603), (694, 30260022), (834, 25180402), (1041, 20173348), (1388, 15130011), (1668, 12590201), (1807, 11621724), (2082, 10086674), (2791, 7524348), (3614, 5810862), (4164, 5043337), (4511, 4655388), (5421, 3873908), (5582, 3762174), (7228, 2905431), (8373, 2508116), (9022, 2327694), (10842, 1936954), (11164, 1881087), (13533, 1551796), (16746, 1254058), (18044, 1163847), (21684, 968477), (27066, 775898), (33492, 627029), (36283, 578796), (48233, 435396), (54132, 387949), (72566, 289398), (96466, 217698), (108849, 192932), (144699, 145132)]