21741320

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{28607}}^1$

素因数の和:28637

約数の個数: 32

約数和(自身を含む): 51494400

約数和(自身を除く): 29753080

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 28607, 57214, 114428, 143035, 228856, 286070, 543533, 572140, 1087066, 1144280, 2174132, 2717665, 4348264, 5435330, 10870660, 21741320]

約数ペア:

[(1, 21741320), (2, 10870660), (4, 5435330), (5, 4348264), (8, 2717665), (10, 2174132), (19, 1144280), (20, 1087066), (38, 572140), (40, 543533), (76, 286070), (95, 228856), (152, 143035), (190, 114428), (380, 57214), (760, 28607)]