21199560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7681}}^1$

素因数の和:7718

約数の個数: 64

約数和(自身を含む): 66372480

約数和(自身を除く): 45172920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 184, 230, 276, 345, 460, 552, 690, 920, 1380, 2760, 7681, 15362, 23043, 30724, 38405, 46086, 61448, 76810, 92172, 115215, 153620, 176663, 184344, 230430, 307240, 353326, 460860, 529989, 706652, 883315, 921720, 1059978, 1413304, 1766630, 2119956, 2649945, 3533260, 4239912, 5299890, 7066520, 10599780, 21199560]

約数ペア:

[(1, 21199560), (2, 10599780), (3, 7066520), (4, 5299890), (5, 4239912), (6, 3533260), (8, 2649945), (10, 2119956), (12, 1766630), (15, 1413304), (20, 1059978), (23, 921720), (24, 883315), (30, 706652), (40, 529989), (46, 460860), (60, 353326), (69, 307240), (92, 230430), (115, 184344), (120, 176663), (138, 153620), (184, 115215), (230, 92172), (276, 76810), (345, 61448), (460, 46086), (552, 38405), (690, 30724), (920, 23043), (1380, 15362), (2760, 7681)]