20954336

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2963}}^1$

素因数の和:3003

約数の個数: 48

約数和(自身を含む): 47056464

約数和(自身を除く): 26102128

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 32, 34, 52, 68, 104, 136, 208, 221, 272, 416, 442, 544, 884, 1768, 2963, 3536, 5926, 7072, 11852, 23704, 38519, 47408, 50371, 77038, 94816, 100742, 154076, 201484, 308152, 402968, 616304, 654823, 805936, 1232608, 1309646, 1611872, 2619292, 5238584, 10477168, 20954336]

約数ペア:

[(1, 20954336), (2, 10477168), (4, 5238584), (8, 2619292), (13, 1611872), (16, 1309646), (17, 1232608), (26, 805936), (32, 654823), (34, 616304), (52, 402968), (68, 308152), (104, 201484), (136, 154076), (208, 100742), (221, 94816), (272, 77038), (416, 50371), (442, 47408), (544, 38519), (884, 23704), (1768, 11852), (2963, 7072), (3536, 5926)]