19822928

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{331}}^1$

素因数の和:555

約数の個数: 40

約数和(自身を含む): 40756320

約数和(自身を除く): 20933392

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 197, 304, 331, 394, 662, 788, 1324, 1576, 2648, 3152, 3743, 5296, 6289, 7486, 12578, 14972, 25156, 29944, 50312, 59888, 65207, 100624, 130414, 260828, 521656, 1043312, 1238933, 2477866, 4955732, 9911464, 19822928]

約数ペア:

[(1, 19822928), (2, 9911464), (4, 4955732), (8, 2477866), (16, 1238933), (19, 1043312), (38, 521656), (76, 260828), (152, 130414), (197, 100624), (304, 65207), (331, 59888), (394, 50312), (662, 29944), (788, 25156), (1324, 14972), (1576, 12578), (2648, 7486), (3152, 6289), (3743, 5296)]