21729552

素因数分解:

$2^4\times 3^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{359}}^1$

素因数の和:480

約数の個数: 80

約数和(自身を含む): 61246080

約数和(自身を除く): 39516528

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 16, 24, 26, 39, 48, 52, 78, 97, 104, 156, 194, 208, 291, 312, 359, 388, 582, 624, 718, 776, 1077, 1164, 1261, 1436, 1552, 2154, 2328, 2522, 2872, 3783, 4308, 4656, 4667, 5044, 5744, 7566, 8616, 9334, 10088, 14001, 15132, 17232, 18668, 20176, 28002, 30264, 34823, 37336, 56004, 60528, 69646, 74672, 104469, 112008, 139292, 208938, 224016, 278584, 417876, 452699, 557168, 835752, 905398, 1358097, 1671504, 1810796, 2716194, 3621592, 5432388, 7243184, 10864776, 21729552]

約数ペア:

[(1, 21729552), (2, 10864776), (3, 7243184), (4, 5432388), (6, 3621592), (8, 2716194), (12, 1810796), (13, 1671504), (16, 1358097), (24, 905398), (26, 835752), (39, 557168), (48, 452699), (52, 417876), (78, 278584), (97, 224016), (104, 208938), (156, 139292), (194, 112008), (208, 104469), (291, 74672), (312, 69646), (359, 60528), (388, 56004), (582, 37336), (624, 34823), (718, 30264), (776, 28002), (1077, 20176), (1164, 18668), (1261, 17232), (1436, 15132), (1552, 14001), (2154, 10088), (2328, 9334), (2522, 8616), (2872, 7566), (3783, 5744), (4308, 5044), (4656, 4667)]