19712528

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{3613}}^1$

素因数の和:3663

約数の個数: 40

約数和(自身を含む): 43021056

約数和(自身を除く): 23308528

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 44, 62, 88, 124, 176, 248, 341, 496, 682, 1364, 2728, 3613, 5456, 7226, 14452, 28904, 39743, 57808, 79486, 112003, 158972, 224006, 317944, 448012, 635888, 896024, 1232033, 1792048, 2464066, 4928132, 9856264, 19712528]

約数ペア:

[(1, 19712528), (2, 9856264), (4, 4928132), (8, 2464066), (11, 1792048), (16, 1232033), (22, 896024), (31, 635888), (44, 448012), (62, 317944), (88, 224006), (124, 158972), (176, 112003), (248, 79486), (341, 57808), (496, 39743), (682, 28904), (1364, 14452), (2728, 7226), (3613, 5456)]